Compare Technology for Your Concern

shop hepa air purifiers for your concern

Which air purifier is best for your home environment? Use our quick guide to make the best decision. All recommended air purifiers cover basic allergy and asthma concerns an are the best rated in each category.

Three Main Air Purifier Types

three concerns

HEPA (High-Efficiency Particulate Air)

High efficiency HEPA air purifiers effectively capture airborne particles. The percent of particles captured is the highest of any air purification technology available.

Effectiveness: HIGH

Removes up to 99.97% of particles like dust, pollen, pet dander, mold spores and more.

Electrostatic Precipitator

Particles are charged and then stick to oppositely charged metal plates within the air purifier.

Effectiveness: MINIMAL

Does a poor job at circulating air. Requires frequent cleaning of the plates to maintain efficiency.

Ozone Generator

Not safe or effective at removing pollutants. By design, they produce ozone, a lung irritant that can cause adverse health effects.

Effectiveness: HARMFUL

Does not remove particles in the air. Ozone worsens air quality and can cause damage to lungs when inhaled.

Complementary Air Purifier Technology


Activated Carbon

Effective at removing unpleasant odors, gases, and chemicals in the air. Particles become attracted to, and then trapped within tiny pores in the activated carbon.

Good For:

Odor, Gases, Chemicals


Helps remove pollen, bacteria, odors, and chemicals. Ionic-only units provide inadequate filtration. Ionizers improve HEPA performance, but don't work well alone.

Good For:

Pollen, Bacteria, Odor, Chemicals

Molecular Conversion Powder

Destroys tough odors like tobacco smoke at a molecular level, leaving the air smelling fresh and pure.

Good For:

Smoke, Heavy odor


Silver-infused filters capture and kill airborne microbes. Silver is a natural anti-bacterial.

Good For:

Microbes, Mold Bacteria, Viruses

Photo-Catalytic Oxidation (PCO)

Destroys gaseous pollutants by converting them into harmless products by the use of UV light and a catalyst (Titanium Oxide).

Good For:



Captures large particles (hair, large dust particles) to extend the life of your air purifier filter.

Good For:

Hair, Pet Fur, Large dust particles

Thermodynamic Sterilizing System (TSS)

Destroys 99.9% of living microorganisms and proteins by exposing them to temperatures above 200 C (approx. 400F). Not used with HEPA.

Good For:

Microbes, Mold, Bacteria, Viruses

UV Light

Kills airborne germs, bacteria and viruses by damaging the bacteria and viruses' DNA and molecular structure.

Good For:

Bacteria, Viruses

Match Technology With Your Concern

three concerns

HEPA Filter
UV Light
Allergies - - - - -
Asthma - - - -
Dust - - - -
Chemicals - - - -
Germs - -
Mold - -
Odor - - -
Pets - - -
Smoke - - -

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