Bionaire 315 Carbon Filter

Bionaire 315 Carbon Filter is a Genuine OEM Bionaire Filter.
Fits in Bionaire air purifier/humidifier model BT3000.
Traps from the air over 4000 chemical substances and noxious odors.
Filter Dimensions, inch. 12.8 x 12.8 x 0.2.
Filter's Lifetime: 3 months on average.
Complements air filter 311.
Comes 1 filter per pack.