5 Best Air Purifiers for Allergies & Asthma (2021 Reviews) – Expert-recommended air purifiers

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Well, we think you’re here to find the best air purifiers for allergies and asthma. You (or your family) may be suffering from severe allergies or asthma, right?

We made this list after testing more than 300 air fresheners to make sure it’s the most appropriate buying guide for air purifiers for allergies and asthma in 2021. We spent hours reducing candidates to one of the top 10, so we took it into account the performance, power, features, a little bit of design and, most importantly, the value for money of each air purification device.

Our Top Pick

Last update on 2022-11-13 / Affiliate links / Images from Amazon Product Advertising API

Top 10 Best Air Purifiers for Allergies To Buy In 2021

Last update on 2022-11-13 / Affiliate links / Images from Amazon Product Advertising API

10 Best Air Purifiers for Allergies Review

Bestseller No. 1
LEVOIT Air Purifier for Home Allergies Pets Hair in Bedroom, H13 True HEPA Filter, 24db Filtration System Cleaner Odor Eliminators, Ozone Free, Remove 99.97% Dust Smoke Mold Pollen, Core 300, White
  • OZONE FREE: Levoit air purifiers avoid using UV-C light, an air cleaning method that research has shown can produce harmful ozone and secondary pollution
  • HIGH PERFORMANCE: Enjoy fresh air in minutes with the Core 300 True HEPA Air Purifier. Featuring VortexAir Technology and 360° air intake, the Core 300 cleans spaces up to 547 ft² in 30 minutes, 219 ft² in 12 minutes (CADR: 141 CFM / 240 m³/h). Only products over 6 pounds can be equipped with such powerful motors that optimize the air cleaning performance
  • FIND RELIEF: Ease sneezing, congestion, and other allergy symptoms caused by airborne contaminants. The H13 True HEPA Filter works alongside the Pre-Filter and High-Efficiency Activated Carbon Filter to capture 99.97% of airborne particles 0.3 microns in size, such as dust, smoke, pollen, odor
  • OFFICIAL LEVOIT FILTERS: Search for B07RSZSYNC or Core 300-RF to find Levoit's Core 300 replacement filter. Levoit filters provide the best fit and filtration, while off-brand filters are unreliable and may damage the air purifier
  • MULTIPLE FILTER CHOICES: Choose from a variety of replacement filters to best meet your needs. The Toxin Absorber Filter specializes in smog, toxins, and VOCs. The Smoke Remover filter specializes in wildfire, smoke and etc. And the Pet Allergy Filter helps to capture pet dander and absorb unpleasant odors
SaleBestseller No. 2
Germ Guardian Air Purifier for Home, Bedroom, Office, H13 HEPA Filter, Removes Dust, Allergens, Smoke, Pollen, Odors, Mold, UV-C Light Helps Kill Germs, 22 Inch, Dark Gray, AC4285E
  • 3-IN-1 AIR PURIFIER FOR HOME - True HEPA air filter reduces up to 99.97% of harmful germs, dust, pollen, pet dander, mold spores, and other allergens as small as .3 microns from the air
  • KILLS GERMS - UV-C light helps kill airborne viruses such as influenza, staph, rhinovirus, and works with Titanium Dioxide to reduce volatile organic compounds
  • TRAPS ALLERGENS - Pre-filter traps dust, pet hair, and other large particles while extending the life of the HEPA filter
  • REDUCES ODORS - Activated charcoal filter helps to reduce unwanted odors from pets, smoke, cooking fumes, and more
  • QUIET OPERATION - The lowest setting can be used as gentle white noise at night for a quiet, restful sleep
Bestseller No. 3
LEVOIT Air Purifiers for Bedroom Home, HEPA Filter Cleaner with Fragrance Sponge for Better Sleep, Filters Smoke, Allergies, Pet Dander, Odor, Dust, Office, Desktop, Portable, Core Mini, White
  • REFRESH & RELAX: If you struggle with allergies, low-quality sleep, congestion, or symptoms caused by pet dander, the Levoit Core Mini Air Purifier is ready to help you create a healthy space
  • MATTER OF MINUTES: Breathe freely and sleep better as the air purifier uses 360° VortexAir Technology 3.0 and 3-stage filtration to ensure top-notch air purification
  • QUIET OPERATION: Sleep soundly without loud rattling coming from your air purifier. This little air purifier keeps noise levels as low as 25dB while keeping your space fresh
  • AROMATHERAPY: Struggling with pet odors or musty smells, Add a few drops of fragrant essential oils to the aroma pad to keep your space smelling great
  • SAVE SPACE: Tired of dragging a bulky purifier back and forth, Light, travel-friendly, and compact, the Levoit Core Mini Air Purifier (6.5 × 6.5 × 10.4 in) easily fits in any bedroom, office, or living room, creating less clutter and more fresh air
SaleBestseller No. 4
Germ Guardian FLT4825 HEPA GENUINE Air Purifier Replacement Filter B for GermGuardian AC4300BPTCA, AC4900CA, AC4825, AC4825DLX, AC4850PT, CDAP4500BCA, CDAP4500WCA and More, 1-Pack , Gray
  • Why buy genuine: genuine germguardian replacement parts are essential for maintaining product performance, as your purifier is only as powerful and effective as the filter you put inside
  • Hassle free fit: genuine germ guardian replACement parts fit like a glove and are designed for a particular unit style
  • Breathe fresh and cleaner air: a true HEPA filter, ACtivated charcoal layer, and pre filter work to help improve indoor air quality
  • True HEPA filter: reduces up to 99. 97% of dust, pollen, pet dander, mold spores, and allergens as small as . 3 microns from the air
Bestseller No. 5
LEVOIT Air Purifiers for Home Large Room, H13 True HEPA Filter Cleaner with Washable Filter for Allergies, Smoke, Dust, Pollen, Quiet Odor Eliminators for Bedroom, Pet Hair Remover, Vital 100, White
  • 100% OZONE-FREE: The Vital 100 is completely ozone free and never uses UV-C light, which the research has shown can produce harmful ozone and secondary pollution.
  • POWERFUL PERFORMANCE: With a CADR of 130 CFM/ 221 m3/h, the Vital 100 is perfect for living rooms, bedrooms, and kitchens. Covers 300 ft²/ 28 m² in only 18 minutes. (Only products over 6 pounds can be equipped with such powerful motors that optimize the air cleaning performance)
  • 3-STAGE FILTRATION: Comes equipped with a washable pre-filter for large particles like lint and fur, a High-Efficiency Activated Carbon Filter for toxic fumes and unpleasant odors, and an H13 True HEPA Filter, which captures at least 99.97% of airborne particles 0.3 microns in size.
  • SLEEP COMFORTABLY: With noise levels as low as 23 decibels, the Vital 100 won’t keep you up at night. You can also turn off the display lights when it’s time for bed.
  • USER-FRIENDLY: Set a timer for 2, 4, or 8 hours whenever you like. The Check Filter Indicator will let you know when it’s time for a fresh filter.
SaleBestseller No. 6
Honeywell HPA300 HEPA Air Purifier for Extra Large Rooms - Microscopic Airborne Allergen+ Reducer, Cleans Up To 2250 Sq Ft in 1 Hour - Wildfire/Smoke, Pollen, Pet Dander, and Dust Air Purifier – Black
  • EXTRA LARGE ROOM AIR PURIFIER - Honeywell HPA300 HEPA Air Purifier helps provide fresher, cleaner air in minutes. Cleans up to 2250 sq ft in 60 mins (1 ACH), for powerful large room coverage. Provides 4.8 air exchanges per hr in AHAM suggested room size of 465 sq ft
  • HELPS REDUCE ALLERGENS - This HEPA air purifier has 3 air cleaning levels including Turbo Clean. It helps capture the following microscopic airborne allergens and particles: dust, pollen, pet dander, dust mite debris and smoke
  • EFFECTIVE AIR CLEANING AND CIRCULATION – The Honeywell HPA304 Air Purifier filters and circulates air in extra-large 465 square feet rooms up to 4.8 times an hour.
  • ALLERGEN PLUS SERIES – This Honeywell HEPA Air Purifier is part of our Allergen Plus series. This product earned the ENERGY STAR label by meeting strict energy efficient guidelines set by the U.S. EPA.
  • COMPATIBLE DOES NOT MEAN COMPARABLE – For best performance, use only Genuine Honeywell air purifier filters. Compatible air purifier filter replacements are not guaranteed to offer the same performance or efficiency.
Bestseller No. 7
LEVOIT Air Purifier for Home Bedroom, HEPA Fresheners Filter Small Room Cleaner with Fragrance Sponge for Smoke, Allergies, Pet Dander, Odor, Dust Remover, Office, Desktop, Table Top, 1 Pack, White
  • REFRESH YOUR AIR TODAY: Still struggling with allergy symptoms and unwanted odors. Breathe clean air with the effective Levoit LV-H128 Desktop True HEPA Air Purifier—perfect for anyone wanting to improve their indoor air quality
  • 3-STAGE DUAL-FILTER DESIGN: Dirty air in, clean air out. Unlike conventional air purifiers, the 3-stage filtration system with dual-sided H13 True HEPA filters captures at least 99.97% of airborne particles 0.3 microns in size
  • WHISPER-QUIET: Babies are easily woken up by noises and sleep deprivation can negatively impact their well-being. This air purifier keeps noise levels as low as 28dB and has a Sleep Mode, so you and your family can feel well-rested every night
  • Official Levoit Filters: Search for B08H8QNW1S or LV-H128-RF to find the Levoit Personal True HEPA Replacement Filter. Levoit replacement filters provide the best fit and filtration, while off-brand filters are unreliable and may damage the air purifier
  • WHISPER-QUIET: Looking for stress relief after a high-pressure day. Add 2-3 drops of your favorite essential oils to the aroma pad and enjoy natural fragrance throughout your space
Bestseller No. 8
LEVOIT Core 300 Air Purifier Replacement Filter, 3-in-1 True HEPA, High-Efficiency Activated Carbon, Core300-RF, White, 2 Count (Pack of 1)
  • PROTECT YOUR INVESTMENT: Search for B08Q3VZX9X or Core300-RF for the genuine Levoit replacement filter to ensure what you're buying is worthy of your investment
  • CORE 300 REPLACEMENT FILTER: Exclusively designed for Levoit Core 300 air purifier to maintain its peak performance. With cost-effective price to save much cost for your all year round air cleaning need. It is recommended to replace filters for every 6-8 months
  • TRUE HEPA TECHNOLOGY: Adopt True HEPA Filter with H13 grade which meets the High-Efficiency Particulate Air (HEPA) standard. It filters the fine airborne particles such as pet dander, dust mites, and pollen, effectively helping improve allergies
  • TRAP LARGE PARTICLE: Ultra-fine Nylon Pre-Filter captures large particles such as dust, lint, fibers, hair, and pet fur, also helpful to maximize the filter’s life
  • TRAP HOUSEHOLD ODORS: High-grade granular activated carbon filter physically absorbs unwanted odors and fume, such as smoke, cooking smells and pet odors, as well as filtering volatile organic compounds (VOCs), ideal for households with pets, cooking and smokers
Bestseller No. 9
Air Purifiers for Bedroom Home, H13 True HEPA Air Filter, 20db Quiet Air Purifier for Dust Smoke Pollen Pet Dander Odor, Small Air Cleaner for Office Living Room, Ozone Free, 215 ft² Coverage
  • H13 True HEPA Air Filter: Remove 99.97% of particles 0.3 microns in size, such as dust, pollen and pet dander. Working alongside the pre-filter and carbon filter, enable the air purifiers can also capture smoke, pet odors, smell and More.
  • Ideal Room Size 215 ft²: Featuring 360° air intake and powerful brushless motor, this small air purifiers can achieve 215 ft² comple coverage. Suitable for home, bedroom and any other small room.
  • 20db Silent At Night: Reduces noise levels to flowers-blooming 20db, ensuring the rest environment without interference. With night light off and 5 timer options, enable you to enjoy the fresh air in sweet dream.
  • Ozone Free: Avoid using UV-C light, which research has shown can produce harmful ozone and secondary pollution.
  • Full Certified for Safer: Complies with CARB certification, Ozone-Free certification, ETL Listed, FCC Certification, CA PROP 65 Certified and EPA certification. We are committed to providing a superior consumer experience.
Bestseller No. 10
LEVOIT Air Purifiers for Home Large Room, Smart WiFi Alexa Control, H13 True HEPA Filter for Allergies, Pets, Smoke, Dust, Pollen, Ozone Free, 24dB Quiet Cleaner for Bedroom, Core 200S, White
  • OZONE FREE: Our most popular air purifier series is back with an all-new smart model. Levoit air purifiers avoid using UV-C light, which is especially harmful for Asthma sufferers and pets
  • GENUINE REPLACEMENT FILTERS: For the best performance and longest lifespan, use genuine Levoit replacement filters. Use the in-app feature to monitor your filter life. When it’s time for a fresh filter, search “Core 200S-RF”
  • EFFECTIVE PURIFICATION: The compact frame and 360° design help the Core 200S purify the air wherever you put it, refreshing the air 5x per hour in rooms as large as 183 ft² / 17 m². The optimal air cleaning performance can only be delivered by powerful motors installed on products over 6 pounds
  • IMPROVED FILTRATION: While the ultra-fine Nylon Pre-Filter and High-Efficiency Activated Carbon Filter capture large particles and absorb odors and fumes, the H13 True HEPA Filter captures 99.97% of airborne contaminants 0.3 microns in size, ridding your environment of dust, pollen, pet dander, mold spores, and more
  • QUIET OPERATION: With noise levels as low as 24dB, the Core 200S cleans your air without keeping you up at night. For a completely uninterrupted sleep, turn off all lights with the Display Off button

Last update on 2022-11-13 / Affiliate links / Images from Amazon Product Advertising API

What is an air purifier?

In layman terms, an air purifier is an appliance that purifies the air around you, whereby you get pure air to breathe.

Air purifiers use a variety of filters to trap the microscopic dust particles and pollutants that can cause harm. We shall discuss these aspects later on when we come to it. The following examples will drive home the fact.

  1. People who use air conditioners are home would have noticed the amount of dust that collects on the filters. Cleaning these filters improves the cooling capacity of the AC.
  2. Similarly, you would have noticed the amount of dust sticking to the ceiling fans.

From where does this dust come?

It does not come from anywhere. The dust particles are already present in the air that we breathe.

Now, you can imagine the significance of our lungs that act as air purifiers for our body. If you have an asthma patient at home, you will understand the trouble he/she might find when breathing in such polluted air.

When do you need an air purifier at home?

We have seen why you need an air purifier at home. Let us now see when you need it the most. Though an air purifier is welcome at any time, the following circumstances require you to go for one immediately.

Dust allergies

If you experience frequent bouts of sneezing or coughing because of dust allergies, it is time you invested in an air purifier for allergies. These purifiers eliminate allergens like pollen and pet dander and provide you with much-needed relief.

Asthma attacks

Houses having asthma patients should not think twice before purchasing an air purifier. It is one of the perfect ways to provide relief to people living with asthma and ensure that they do not experience respiratory issues.

Pet Dander and hair pollutants

Having pets at home is fun. However, the downsides are that you are exposed to pet dander and hair impurities that you inhale unconsciously. Having a specific air purifier to deal with pet dander should be ideal for such homes.

Smoke

No Indian home is bereft of smoke. You should thank your stars if there are no smokers in your home.

However, every house has to contend with smoke emanating from the kitchen while cooking and also from devotional rooms when you light incense sticks and burn camphor. A high-quality air purifier can eliminate the chemicals from such smoke and make it comfortable.

Chemical sensitives

Using mosquito repellents is excellent for dealing with mosquitoes. Similarly, you use aerosol sprays for repelling flies and cockroaches. Even your medicinal sprays for providing relief from muscular aches can pollute the air.

What causes asthma?

Asthma AKA bronchial asthma is a chronic lung disease that inflames and narrows the breathing airways. It happens when the tubes that carry air in and out of your lungs become inflamed and muscles become swollen. More mucus will be produced that adds to the obstruction. As a result, the airway is narrower making it hard to breathe. Most asthma symptoms are related to respiratory infections triggered by airborne irritants as such:

  • Allergic asthma – A common chronic respiratory condition that causes the airways to become inflamed when we breathe in allergy triggers. 3/5 of asthma are passed on genetically (hereditary) and more likely to develop throughout their life.
  • Mold – A type of fungus that thrives in damp environments like the basement, bathroom, kitchen sink. While the microorganisms might not be visible when in the air, you can scent its presence through a distinctive musty smell. There are a lot of diseases associated with mold allergy which you can learn about the severity here.
  • Pollen – Fine powdery substances of pollen grains produced by plants and flowers. Often spread through insects, wind and stay suspended in the air for a long period of time. Pollen can cause hay fever when exposed through our mouth, nose, eyes, or throat.
  • Pet dander – Tiny flecks of skin shed from cats, dogs, birds, and other animals with hair or fur. It is the protein found in the dead skin cells that causes pet allergy. Cat dander is more common and allergenic compared with dogs.
  • Perfumes and colognes – Fragrant liquid that is typically made from flower and spices extract. Mask odors with pleasant smell but can trigger allergic reactions with its chemical substances.

Sometimes it is hard to tell if a symptom experience is cold, bronchitis, or asthma. A good indication is on the occurrence frequency as asthma symptoms tend to last longer. Common signs of asthma include:

  • Chronic cough especially at night
  • Cough during exercise or when laughing
  • Difficulty breathing/ Loss of breath
  • Rapid breathing
  • Wheezing (whistling sound when breathing)
  • Dizziness
  • Chest tightness
  • Shortness of breath

Children are the most susceptible to early symptoms of asthma and will show some signs before they turn 5. This is because of the bronchial tubes in infants or toddler is very small and narrow. A slight irritation will lead to the airway inflamed with symptoms that can last for days or weeks. Untreated asthma can kill within minutes. If one or more of the asthma symptoms occur and did not settle down after you have uses a rescue inhaler, seek medical help immediately. While there is no permanent cure, it is controllable and people can still live a normal, active life. A HEPA air purifier would help reduce the number of irritants in the air.

Do Air Purifiers Help with Asthma

An air purifier can help reduce the risk of an asthma attack by removing indoor allergens in a room. You will breathe better without suffering from asthma symptoms and lung irritation. The only condition is the air cleaner needs to be running all the time to protect us from incoming irritants.

Asthma Facts and Figures

Asthma is a chronic lung disease that should not be taken lightly. Many people assume it is a common condition that happens among our peers and friends, an inhaler would probably do the trick. Unfortunately, there are far too many horrid cases that lead to fatality even at a young stage. Most of the death are preventable if safety-precaution is in place. Let’s take a look at some of the scary asthma statistics from AAFA.

  • According to CDC, 1 in 13 people has asthma and has been steadily increasing since the early 1980s.
  • Asthma affects more than 25 million Americans; 6-7 million are children under the age of 18.
  • According to WHO, more than 339 million people have asthma and is the most common chronic disease among children. One-third of children that died only have mild intermittent asthma.
  • Asthma is the top reason for children missing school days with a high 13.8 million record in 2013.
  • About 4,000 people die of asthma annually in the United States. Many of these deaths are avoidable with treatment and care.
  • Asthma is more common in adult women over men, children over adults, and boys over girls.
  • 60-65% of breathing problems linked with asthma from children could be mitigated with an air purifier.
  • Asthma has been on the rise since the early 1980s in all age, sex, and racial groups. Part of the reason is due to the increasingly poor air pollutions exposure.
  • Asthma is more common in adult women over men, children over adults, and boys over girls.
  • More than 11.4 million people including 3 million children had one or more asthma episodes.
  • According to the Asthma and Allergy Foundation of American (AAFA), the annual cost of allergies exceeded $18 billion.

Where Should I Place An Asthma Air Purifier?

The bedroom is the best place for an air purifier as we spend at least 6-8 hours a night in there. When choosing a spot for the device, left 3 feet of space between walls so that it will not impede the airflow circulation. Also, never place it underneath windows or next to electronic devices. For optimum results, get an air cleaner for every room so no airborne pollutants will be able to escape.

6 Different Types of Asthma

According to ACAAI, there are many different types of asthma that can be triggered by different sources. While an allergist can provide you with a diagnosis and identifying the causes, let us go through all 6 common types of asthma.

  • Adult-Onset Asthma – Respiratory infection that only unmasks during adulthood as the person is not exposed to asthma triggers throughout their childhood.
  • Allergic Asthma – The most common form that is triggered by inhaling airborne allergens.
  • Asthma-COPD Overlap (ACO) – When you have symptoms of both asthma and chronic obstructive pulmonary disease (COPD) associated with breathing difficulty.
  • Exercise-Induced Bronchoconstriction (EIB) – The narrowing of the airways that makes it difficult to move air out of the lungs. A condition that can occur in people with or without asthma.
  • Nonallergic Asthma – Triggered by illnesses, medications, and environmental factors that do not involve an immune-system response.
  • Occupational Asthma – Lung disorder that causes the airways to swell and narrow in the workplace.

Additional Tips in Dealing With Asthma and Allergies

It is a known fact that an air purifier can improve indoor air quality by circulating clean air, it is not a substitute for an inhaler or other necessary treatments. There are more actions you can take to minimize exposure to allergens in your home. Little things such as changing your toothpaste, drinking coffee (theophylline), or taking medication can help. Practice the steps below will help you breathe better, relieve from asthma symptoms along with other health benefits.

  • Vacuum every 1 to 2 days – Particulate matters can come from indoor and outdoor through open windows, clothes, and shoes. The tracked contaminants will eventually settle on the ground, wall, sofa, or shelf forming dust bunnies. A HEPA vacuum cleaner will collect the dust particles before we inhale them. Vacuum regularly from top to bottom, behind the sofa, and especially if you have carpets at home.
  • Maintain HVAC filters periodically – Take out the air filter for cleaning every quarterly or according to the maintenance interval. Also, check if there are any damaged ducts that may lead to leakage. Hire a ventilation expert to perform the cleaning on HVAC located in hard to reach places.
  • Keep windows and doors closed – Especially if you are staying in an industrial area, close to highways, or during the pollen season. It will reduce the volume of clean air from going out and outdoor allergens from coming in.
  • Reduce smoke at home – Gas and odor can aggravate allergies and trigger an asthma attack. Avoid using scented candles, incense, wood burning, stove cooking, and smoking indoor. You can open windows or turn on an exhaust fan to draw away the smoke and smog. Never start a car with the garage door closed as carbon monoxide may travel inside the house.
  • Beware of pet allergens – Pets shed at an alarming rate. If you are allergic to cats or dogs, try to keep a distance from the furry one. Do not let your pet sleep in your bed or on the couch. Brush them daily and bathe them every 2-3 weeks. Wash your hands and change your clothes after petting them to reduce the exposure to pet dander. Consider getting a hypoallergenic pet that sheds less and brings fewer allergies.
  • Substitute chemical with natural, allergen-free products – Toxic like volatile organic compounds is a known allergy trigger. Choose naturally made detergent, pesticides that will not off-gas toxic fumes. Opt for low VOCs paint and avoid storing the leftover indoor.
  • Maintain room humidity level between 30% to 50% – It can discourage the growth of mold and mildew. It will also relieve allergic symptoms like flaky skin, chronic sneezing, cough, headache, and lungs irritation. Get a humidifier to increase moisture when RH drops below 30% or a dehumidifier to decrease moisture when RH exceeded 50%.
  • Wear a mask – Especially during this unprecedented pandemic times. Change your clothes when you return home and wash linens regularly to prevent dust mites from spreading.
  • Change daily routine – From sitting upright, drinking coffee or caffeinated tea (theophylline chemical), changing toothpaste, to rubbing mustard seed oil on the chest. All these little actions can relax the muscle, open up the airways, and prevent hyperventilation.

Types of Air Purifiers

There are five types of Air purifiers available in the market.

Different air purifiers use different air purification technologies. The majority uses either charcoal absorbents or mechanical filters.

The other techniques include electrostatic, ionizers, ozone and Ultra Violet air filters.

Adsorbent Purifiers

Absorbent purifiers are low cost filters made from activated charcoal. Activated charcoal are used for its effectiveness in trapping odors & chemical gases from the air.

Activated charcoal filters can be used with HEPA filters to trap impurities in the air like dust, molds, bacteria, pet hair, etc.

They can also absorb VOCs which HEPA & other filters cannot d much about them.

UV Light Purifiers

We know that ultraviolet rays are germicidal in nature, and in the air purifying process they do the same job.

A UV light is fitted inside the purifying device, the air goes in and passed through a ray of UV light, this helps in killing microbes, bacteria and other molds in the air.

The UV light denatures the DNA, rendering them inactive in case of viruses and killing the airborne bacteria.

The process that involved here is called UVGI, i.e. ultraviolet germicidal irradiation. Read more about it here.

Ionizers, Ozone Generators & Electrostatic Filters

These are less widely used air purification methods. Ionizers, Ozone & Electrostatic filters are different methods but works on the same principle.

The particles in the air have negative charge in them, and these ionizers, ozone generators & electrostatic filters have either negative or positive charge, they charge the particles floating in the air.

Now the charge particles are bought down & are settled on the ground thus removing them from the indoor air.

Electrostatic filters have one advantage over the other two, in case of ionizers & ozone generators the charged particles are left on the ground/floor that you need to manually clean.

Whereas EFs collect the particles inside the purifier only, this is why electrostatic filters are widely used among these three.

HEPA purifiers

If you’re researching about these devices then you must have chrome across this acronym HEPA, full form is high-efficiency particulate air.

HEPA purifiers works by applying two different mechanism at the same time, it has two filters, outer & inner. The outer filter’s function is trap the bigger dust particles & outer filter to trap smaller particles in the air.

The filters are generally made fiber glass material, HEPA filters removes up to 99.7% of the dust particles.

One disadvantage of HEPA filter is that they cannot trap viruses, odors and chemical substances.

Buy the air purifier that has HEPA filters, as those filters are certified by medical bodies & other institutions..

Pros and Cons of an Air Purifier

One disadvantage of an air purifier is its price is too high. (its prices are likely to fall, as the demand rises.)

Another disadvantage is that its collection plates in an electronic air purifier need regular cleaning.

The advantage of electronic air purifiers is easy to install and does not involve complex wiring. They consume less power and hence less electric charges. There running noise is also negligible

The Three Things to Look for in an Air Purifier for Asthma

Ok, so I think I might have you excited with my last paragraph. I know I got excited when I found out that there were so many things that could help with asthma. I mean, come on, there’s really an air purifier that can kill germs, take care of smoke, dust, allergens, and even odors and VOCs! That’s a ton of stuff!

But, how can one air purifier do all of that?

The answer? Filters. Three filters, in fact. (Imagine that, three filters to take care of three problems!)

HEPA Filter

So, the first thing to look for in an air purifier for asthma is a HEPA filter. I already mentioned that a bit, but I’ll talk a little more about it now. HEPA filters are the minimum requirement in our book when you’re looking for an air purifier for your asthma.

HEPA filters take care of microscopic particles that are so small that you can’t even see them. Those same particles are often the very same ones that can cause your asthma attacks. In addition to taking care of these microscopic particles, HEPA filters clean 99.97% of the overall particles in your air, which is pretty stinking good!

Better HEPA filters are being designed and upgraded constantly and True HEPA filters are the evolution up from the traditional HEPA filter. The Blueair air purifier that we are recommending has a HEPA filter, which is one of the reasons why we recommend it.

Activated Carbon Filter

Activated carbon filters take care of odors, smoke, and VOCs. VOCs are known to be extra problematic for people with asthma, so an activated carbon filter is an absolute must. Smoke is another bane to the existence of asthma sufferers, which makes activated charcoal filters all the more valuable.

The Blueair air purifiers that we recommended today all have activated charcoal filters, so they’ll be a great help for you and your asthma.

Sanitizer System

Airborne pathogens are extra dangerous for asthma sufferers. Not only can these pathogens attack your already sensitive lungs, but these germs are known to hitch rides on particles that can also cause asthma attacks.

Air sanitizers kill the germs and the HEPA filters that these units often come with will take care of the particles they ride on. Something else that’s cool is that some HEPA filters are supposed to be antibacterial on their own and the Blueair air purifier that we’re recommending today is one of those.

Pre-Filter

While this is actually a fourth thing, I’m including it because while it isn’t a requirement for air purifiers for asthma, it’s still a good thing to have and can save you money in the long run. The Blueair air purifier that I’ve recommended today has a washable exterior pre-filter that you can get different colors of to customize your machine with.

Enjoy Your New Asthma Air Purifier

We hope you enjoyed this guide on the best air purifier for asthma and allergies and found the information outlined above to be useful

As you learned, the best air filter for asthma comes in two types: a True HEPA filter and a PECO filter to extract the widest range of asthma triggers from the air.

You also discovered that it’s good to stay away from ionizers since those types of air cleaners can cause irritation to an asthmatic’s lungs.

Out of all of the reviews on asthma air purifiers above, we hope you found one particular device that meets your needs. And most importantly, that it will help you live a healthier and more symptom-free life.

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