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Step Up to the Latest Air Purifier Technology

Dandelion with seeds floating into the air

Buying an air purifier.

An air purifier is one way to help make allergy season more pleasant. Air purifiers can help filter out pollen, mold, pet dander and other common irritants from your environment. Also, they can help remove harmful particles and unpleasant odors, helping you breathe easier and improve your air quality.


Air purifier benefits

  • Helps protect against the effects of pollution.
  • Helps alleviate the symptoms of allergies.
  • Helps capture dust, pollen and pet dander.
  • Helps eliminate bacteria, viruses and mold spores.
  • Helps reduce chemical fumes, smoke and odors.
  • Circulates clean air, revitalizing your environment.
  • Ideal for home and bedroom.

What To Consider

What to consider when choosing an air purifier.

Room size
A larger room requires a higher-capacity air purifier.

HEPA filters
These filters help reduce common allergens, such as dust, pet dander, pollen and other particles.

Charcoal or active carbon filters
These filters help reduce odor by absorbing smoke, cooking smells, pet odors and other irritants.

App-controlled air purifiers
Some models let you remotely control your air purifier with an app. You can monitor performance, receive an alert when it's time to change the filter and control your air purifier's settings from your smartphone or tablet.


Air purifier features

Filter service indicator
Most room and whole-house air purifiers that use an electronic precipitator, and whole-house air purifiers that use a HEPA filter with ionizing circuitry, feature an indicator light that lets you know when it's time to replace or clean the filter. A clogged air purifier works inefficiently. You should remove and wash an electronic precipitator's collector-plate assembly every month or so. You can do this in the sink or tub or put it in a dishwasher.

Air purifiers with ionizing technology generate negative ions that attract positively charged air pollutants. As the charged particles clump together, eventually they become heavy enough to fall from the air.

UV-C light
Part of the ultraviolet light spectrum, UV-C light is used by many hospitals to kill germs. UV technology helps capture airborne contaminants such as bacteria, viruses, fungus, mold and mildew. It's often used in combination with a HEPA filter and activated carbon.

Multi-function air purifiers
Some air purifiers can function as a heater or a fan, as well as an air purifier. A combination air purifier gives you multiple options for improving the comfort of your home in a single appliance.


Terms Explained

Technology terms explained.

Thermodynamic Sterilization System (TSS)
Purification technology that features a ceramic core that heats up to around 400°F.

ENERGY STAR certified
Products that save money, reduce energy use and protect the environment by meeting strict energy efficiency guidelines set by the U.S. Environmental Protection Agency and the U.S. Department of Energy.

Association of Home Appliance Manufacturers (AHAM) Certified
The AHAM's Clean Air Delivery Rate (CADR) measures how effectively an air purifier filters smoke, pollen and dust.

Photocatalyst filter
Removes toxic fumes and chemicals.


Shop online or in store.

Find a wide variety of air purifiers here at Best Buy. Whether in store or online, our experts are ready to answer questions to help you find the perfect purifier for any space.