Here's Why HEPA Filters so Expensive - Smart Air

Why are HEPA filters so expensive?. HEPA filter technology is 70 years old, and air purifiers are incredibly simple. Learn why HEPA filters don't need to be so expensive.

VAVSEA Air Purifier, HEPA Air Filter for Home Large Room up to 600 Sqft, Air Cleaner for Pet Hair, Allergies, 99.97% Smokers, Odors, Dust, Pollen, Odor Eliminators for Bedroom

Levoit PlasmaPro 600S Smart 635 Sq. Ft True HEPA Air Purifier White HEAPAPLVSUS0097A - Best Buy

Smart Air Purifier Carrier Smart Room Air Purifier — Carrier @ Home

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MAXIMUM COVERAGE: Cleans small spaces up to 800 ft² in one hour (CADR 120). Ideal tabletop purifier for homes, apartments, bedrooms, living rooms,

Medify Air MA-14 Air Purifier with H13 True HEPA Filter | 200 sq ft Coverage | for Allergens, Wildfire Smoke, Dust, Odors, Pollen, Pet Dander | Quiet

Levoit Smart Air Purifier Lv-rh131s-wm, HEPA for Smoke & Odors, Bonus Filter, Energy Star

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Smart Air S Air Purifier - Perfect for bedrooms and other living areas inside the home. Cleans the air in a 21' x 21' room FOUR times per hour or 900 square feet every 30 minutes. Uses HEPA filter with 99.95% efficiency at removing both .3-micron and 0.07 micron airborne particles. Includes a carbon filter to remove odors, volatile organic compounds (VOC's), paint fumes, chemicals and smoke. Meets California ozone emissions limits. CARB, UL, CSA certified.