Colorfil HVAC Filter (4" & 5" depth)
- Removes odors, chemicals, and allergens from your air.
- MERV 8 particle efficiency.
- Color changes as it captures chemicals and odors.
- Built with direct support from NASA.
- Every filter sold donates $1 to animals in need.
- FREE Shipping in USA, made in USA.
- Looking for 1" depth filters? Get them here.
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