🌬️ Air Purifier Size Calculator

Enter your room details — get the exact CADR rating you need

Room Dimensions

Room Length (ft)

Room Width (ft)

Ceiling Height (ft)

Select all that apply:

—

Room Size (sq ft)

—

Room Volume (cu ft)

—

Air Changes / Hour

—

Recommended CADR

Calculations stay in your browser. Find another tool · Affiliate disclosure