Length × width × ceiling height, in feet
Cubic feet. Use this for odd shapes and open floor plans.
1air scrubber
6 air changes per hour in 1,344 ft³ needs 134 CFM
Square footage of all surface areas have been provided to help estimate time or cost for small particle cleaning
Numbers assume an open, well-mixed room. Furniture, partitions, and a machine parked in a corner all cut real performance — size up when the space is broken into pockets, and place intake and discharge at opposite ends.