Air Filter for Allergies

Allergic reactions to airborne allergens can be harmful to your health. Unlike food or skin allergens, it is impossible to avoid airborne allergens if we are around them. This is why it is important for allergy sufferers to make use of properly designed air filters. Air filters for allergies are an effective method for reducing the total amount of airborne allergens.

Airborne Allergens

Fortunately for those allergic to airborne allergens, many of the prime allergens are easily removed from the air with an air purifier filter. Pet dander and the smallest pollen grains are around 2.5 microns across,1 easily stopped by a High Efficiency Particulate Air filter, or HEPA filter. Aspergillus mold spores are around one to two microns across, also easily trapped in an air filter.2 Dust mites average around 300 microns in diameter.3

An air filter for allergies works by passing air through a mat of fibers that is specifically constructed to allow air through while trapping particulate matter. In addition to simply catching particles between two fibers, particles are also trapped when they are unable to change direction as quickly as the air carrying them is able to, leading the particles to careen into a fiber. Given the very small mass of the particles, simply contacting a fiber is enough to stop them.

Also known as an air purifier or air cleaner, an air purifier benefits those who don’t suffer from allergies as well.

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What Are Allergies?

An allergic reaction is when the body’s immune responses are directed at something which doesn’t actually pose a threat.4 When this occurs, the immune response itself is more harmful than the allergen.

This is why seasonal allergies can feel like the flu or a cold.5 Your body, in response to otherwise harmless pollen, is performing the same steps it would perform if it were trying to kill a flu or cold virus.

Reducing the number of allergens in the air reduces the number of allergens your body can react to. This can reduce the incidence of allergies.

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Yes, an air purifier with a HEPA- or ULPA-rated filter is effective at removing allergens from the air. Studies have shown that trapping and removing allergens such as pet dander and pollen from the air with an air purifier can reduce allergic responses.6

In moist environments and if not regularly maintained, air filters in HVAC systems have actually been found to support mold growth. This happens if moisture condenses on the filter media as air passes through. The biological material trapped by the filter can serve as an excellent source of food for the mold. When the mold grows from the upstream to downstream side of the filter, mold spores can be released into the air coming from the filter, possibly worsening allergies. A properly maintained air filter should not cause or worsen allergies.

There may be a link between food allergies and asthma attacks in children. However, it is not clear if the link is causal. It is possible that increased allergic responses present as both food allergies and asthma, and that an allergic reaction to food may precipitate an asthmatic episode. Whether this link runs in both directions is unclear, so it cannot be said for certain if an air filter will or will not help alleviate food allergies.

The best filter for allergies depends on a number of factors. If you are allergic to solid air contaminants like pollen or mold, a HEPA or ULPA filter can be very effective at reducing airborne allergens. All air filters for allergies need to be the correct size for the space they are meant to treat. Effective air purification relies on being able to process pollutants out of the air faster than they can be regenerated or introduced. When an air filter for a room is too small for the room it is used in, the filtering system may not be able to effectively clear the air of allergens.

Pet dander, pollen, and mold are all large enough to be trapped in HEPA and ULPA air filters. There is a chance that a very small fraction of these irritants will make it through the filtration media. HEPA filters remove 99.97% of particulate 0.3 microns in diameter, and are actually more effective at removing larger particles. Pollen, mold, and pet dander are all larger than 0.3 microns, so less than one in three thousand of these allergens make it through the filter. ULPA filters remove even more particles; less than one in 100,000 will make it through.

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Why SoClean

Keep your home fresh and SoClean with the SoClean 3-Stage Air Purifier+. Up to 3,000 times more efficient than HEPA standards, the SoClean 3-Stage Air Purifier captures particles down to 10 nanometers and generates cleanroom-level clean air for your home. The easy-to-use design makes it simple to produce quality air wherever you are.

Master Air Purifier Sources:

Air quality sources:,as%20asthma%20and%20heart%20disease

Air purification/filtration process sources:

HEPA, UPLA, and MERV filter sources: