Air Scrubber Calculator

Find out how many air scrubbers your space needs, based on 6 air changes per hour — the industry standard for remediation and restoration work.

Length (ft)
Width (ft)
Ceiling height (ft)
Room Volume—
Airflow Needed (6 ACH)—
675 CFM Unit
Standard Air Scrubber
— unit(s) needed
1800 CFM Unit
High-Output Air Scrubber/Neg-Air Machine
— unit(s) needed

This calculator uses the standard restoration-industry target of 6 air changes per hour. Actual airflow needs can vary with filter load, duct length, and the severity of dust — when in doubt, round up.