PuroAir 400 Replacement Filter - Genuine Puro Air 400 Filter Replacement - Official PuroAir Air Purifier HEPA Filter with CarbonTech Filters 99.9% of

PuroAir 400 Replacement Filter - Genuine Puro Air 400 Filter Replacement - Official PuroAir Air Purifier HEPA Filter with CarbonTech Filters 99.9% of

GENUINE PUROAIR FILTER: Look for the Official PuroAir Seal for authentic 400 Replacement Filters. Let us do the dirty work and remind you when to change out the filter by signing up to have them delivered right to your door! (Replace every 3-4 months). POWERFUL AIR FILTER: PuroAir True HEPA air purifier features a 3-layer filtration system 500X stronger than competitors, with a pre-filter, HEPA filter, and activated carbon—filtering up to 99.9% of pollutants, dust, pollen, pet dander, smoke and odors. BACKED BY SCIENCE: Third-party lab tested proven to filter common indoor household pollutants with ease, this pet air purifier tackles pet dander and pet hair for improved allergy symptoms and sleep quality*. (SleepScore's independent lab testing, 2024). POWERED BY CARBONTECH: Each Genuine PuroAir HEPA filter is designed with our exclusive CarbonTech layer, made from a proprietary blend of activated carbon for superior filtration of odors. (Based on independent testing in an ISO 17025 certified lab, 2024) RISK-FREE WARRANTY: In partnership with American Lung Association, over 900,000+ families now trust PuroAir to keep their air clean. Have a problem or question? Our team is here to make it right under our 2-year warranty. Proudly based in the USA.

Advanced Filtration for Cleaner Air

Enhance your PuroAir air purifier with our genuine HEPA filter replacements, engineered to filter up to 99.9% of pollutants lurking in your home's air.* These air filters for air purifiers fight dust, pollen, smoke, and pet dander—even particles down to 700 times smaller than a human hair.* (Filtration data is based on filter performance standards and independent testing on inanimate particles in an ISO 17025 laboratory. Results may vary, 2024)

Powerful 3-Layer True HEPA Filter System

PuroAir filters have a perfect match seal and a 3-layer filtration system: a pre-filter, HEPA filter, and an activated carbon layer. This advanced system ensures your air purifier operates at its best, improving air quality and enhancing sleep quality by reducing common household pollutants.* (Based on SleepScore independent lab testing. Filtration data is based on filter performance standards and independent testing on inanimate particles in an ISO 17025 laboratory. Results may vary, 2024)

Certified Quality Backed by Science

Lab-tested and certified, our filters meet the highest standards of safety and performance. Better filtration means improved allergy symptoms and better sleep quality. Over 900,000 families trust PuroAir to keep their air clean with our true HEPA air purifier filter replacements.

100-Day Clean Air Guarantee

We stand by our products and their performance, offering a 100-day clean air guarantee. If you're not satisfied, our team in Arizona is here to make it right. Proudly based in the USA, PuroAir is committed to providing the best genuine replacement filters for your PuroAir air purifier.