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Best Air Purifier Technology

The best performing air purifiers feature more than one technology, using HEPA style filtration as the key to optimal results. Learn about the best air purifier technology and the use of air purifier types such as HEPA, pre-filters, activated carbon, and ozone generators.

how an air purifier works

How They Work

Each of the three types of air purifier use a unique strategy for filtering airborne particles. Additionally, an air purifier may use a complementary technology--activated carbon or ultraviolet light--to target specific kinds of particles that otherwise may go unchecked.

air purifier filter

HEPA Technology

Developed in the 1950s, High Efficiency Particulate Air (HEPA) technology was made popular by use in medical cleanrooms, and it is still the most reliable and effective technology used in the best air purifiers.

air purifier pre-filter concept


Air purifier pre-filters provide a first line of defense against large particles like dust, extending the life of your HEPA filter.

an air purifier with activated carbon neutralizes order and traps harmful chemicals

Activated Carbon

Activated carbon neutralizes odors and traps harmful chemicals and gases in its pores to provide relief from activities like secondhand smoke, off-gassing from plastics, and harmful fumes produced from renovations, making it one of the best air purifiers for businesses.

ozone generators for purifying air

Ozone Generators

Ozone generators are air purifiers that intentionally produce ozone. Not all air purifiers are effective, but some are not even appropriate for home use, like ozone generators.

choosing the right air purifier technology

Technology Guide

How do I choose an air purifier? Our Air Purifier Technology Guide will help you select the best air purifier technology that is right for you.