PuroAir 400 HEPA Replacement Filter

Ensure your PuroAir 400 Air Purifier continues to deliver fresh, clean air with the PuroAir 400 Replacement Filter. This advanced HEPA filter tackles dust, allergens*, and odors, maintaining peak performance. Replace every 90 days for optimal results.

Keep your PuroAir 400 Air Purifier performing at its highest level with the PuroAir 400 Replacement Filter. Specially crafted for the PuroAir 400, this replacement filter is key to maintaining superior air purification. It effectively filters small particles, including dust, pollen, pet dander, smoke, and odors, ensuring the air in your home remains clean and fresh.

The filter’s three-layer system provides comprehensive air purification. The pre-filter filters larger debris like dust and pet hair, helping to extend the life of the other filters. The HEPA layer filters particles as small as 0.1 microns, improving indoor air quality. Finally, the activated carbon layer filters odors, smoke, and VOCs.

According to EPA recommendations, replacing the filter every 90 days ensures optimal air quality and performance. However, more frequent replacements may be necessary in areas with higher pollution, such as during wildfire season. Regular filter changes also support a healthier living environment, promoting better cognitive function and reducing respiratory discomfort.

PuroAir is committed to delivering top-notch filtration solutions backed by scientific research. Our filters are designed and developed with the input of experts to provide superior air purification for your home. 

Enjoy free same-day shipping*, a 100-day cleaner air guarantee, and a lifetime warranty on your air purifier when you subscribe to our filter replacement program. Our live customer service team is available to help 7 days a week.

*Tested to remove Fel d 1 and pollen in an ISO 17025 certified lab.

Dimensions: 17.4” x 11.1” x 25”
Weight: 0.5 lbs

3 layers of defense:
Pre-Filter: Screens larger particles like dust and pet hair.
PuroAir HEPA Filter: Cleans up to 99.9% of particles.
Activated Carbon Filter: Filters odors, smoke, and VOCs.

Detection: Particulate matter (PM1, PM2.5, PM10) down to 0.1 µm, VOCs.

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