Air purifier size, room by room

Pick your room. Each page shows the clean-air delivery rate it needs, the arithmetic behind that number, which unit actually covers it, and what a year of running costs.

• 150 ft² — needs 96 CFM · one Levoit Core 300S-P
• 200 ft² — needs 128 CFM · one Levoit Core 300S-P
• 250 ft² — needs 160 CFM · one Levoit Vital 200S-P
• 300 ft² — needs 192 CFM · one Levoit Vital 200S-P
• 350 ft² — needs 224 CFM · one Levoit Vital 200S-P
• 400 ft² — needs 256 CFM · one Levoit Core 600S-P
• 500 ft² — needs 320 CFM · one Levoit Core 600S-P
• 600 ft² — needs 384 CFM · one Levoit Core 600S-P
• 800 ft² — needs 512 CFM · 2 × Levoit Core 600S-P
• 1000 ft² — needs 640 CFM · 2 × Levoit Core 600S-P

All figures use 8 ft ceilings and AHAM's 4.8 air changes per hour. Your ceiling, hours and electricity price are adjustable in the full calculator.