Are Air Purifiers Effective?

Home air purifier sales are increasing, in part as a result of worries about the quality of the air. Even though your house is meant to be a shelter, more people than ever before spend most of their time indoors. As a result, you can be exposed to more indoor toxins and particles that cause or worsen respiratory ailments.

Are air filters a trustworthy way to eliminate indoor contaminants, despite what they claim to do? Yes, to some extent, is the quick response. Continue reading to learn how these gadgets operate and whether you should think about bringing them into your house.

How air cleaners operate

In essence, air purifiers function by cleaning the air, which may include toxins, allergies, and pollutants. In contrast to humidifiers and essential oil diffusers, which add particles to indoor air, they perform the exact opposite. Filters function differently than air purifiers as well. While purifiers can cleanse them as well, filters just remove particles.

The type of air purifier you select ultimately determines the precise particles eliminated. While some versions may eliminate other airborne particles without screening them first, others may be designed with filters to catch particles as air passes through them.

Another choice is an air purifier that emits negative ions, which aid in drawing in positive ion airborne contaminants to help neutralize them. The drawback of this choice is the potential for ozone emissions.

Are they successful?

The simple answer is yes, but an air purifier probably won’t get rid of or neutralize all the irritants in your house. This is because many particles may accumulate on hard surfaces like your walls and soft surfaces like furniture, bedding, and carpets.

The following particles can be eliminated using an air purifier in addition to filters and other methods.


Allergens are chemicals that might cause allergic or asthmatic reactions in the immune system. Among the most prevalent allergens in the air are dust mites, pollen, and pet dander.


Like allergens, indoor mold spores can pose a particular threat to those who suffer from asthma and other respiratory diseases. Air purifiers could be somewhat beneficial, but filtration is far more efficient in removing mold from the air.


Air purifiers with filters may also be able to eliminate smoke in the air, including smoke from tobacco and outdoor fires. However, despite their use, air purifiers may leave smoke stains on walls and ceilings and can’t completely eliminate the smell of smoke.

Quitting smoking is preferable to attempting to filter out smoke from the air. According to one study, air purifiers don’t significantly reduce the amount of nicotine in indoor air.

Indoor pollutants

In addition to airborne allergies and mildew, your house may also include indoor toxins from cleaning supplies, personal care items, and other sources.

Advantages of air purifiers

Air purifiers may assist eliminate the initial cause of your symptoms while drugs for allergies and asthma can help reduce symptoms and avoid responses. There’s a possibility that with sustained use, your allergic responses and asthma symptoms may decrease.

The irritating particles should still be kept out of your house in the first place; this isn’t a replacement for your drugs nevertheless. Before lowering or quitting any medicine, see your doctor first.

They won’t work for what

While air purifiers may help clean the air in your home, they usually function best when used in conjunction with filters. Another thing to think about is the purifier’s size. If you want to receive cleaner air for the entire house, a bigger system is excellent. If not, you could require a few more compact or portable purifiers, one for each room.

Air purifiers may have certain advantages, but they may be ineffective if you don’t also take other measures to improve the air quality in your house. They don’t do much once the particles are on your home’s surfaces since they only remove airborne particles.

The following actions can help stop hazardous particles from entering your interior environment:

  • Rugs, carpets, and upholstery should all be regularly cleaned. Use a HEPA filter vacuum to at least once a week to sweep these areas.
  • In the event of severe allergies, install vinyl or hardwood floors instead of carpets.
  • Once a week, wash the bedding in hot water.
  • Pets should receive frequent baths. If you have an allergy to animal dander, try to stay away from your dogs at night.
  • Make sure your home has the proper humidity level, which should be low enough to keep mold and dust mites away.
  • Don’t smoke inside ever.
  • If at all feasible, switch to nontoxic cleaning supplies. If you have to use stronger chemicals, open a window and turn on fans to ventilate your house.

You can think about testing your home’s air quality to see whether you need an air purifier before spending money on one.


Kate Johnson is a content writer, who has worked for various websites. She is also a college graduate who has a B.A in Journalism.

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