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Air Purifier Room Size Chart

Use this air purifier room size chart to compare room volume, CADR, and air changes.

Last updated: May 2026

Air purifier room size chart with CADR examples Pinterest image for Air Purifier Room Size Chart

Chart values

Air Purifier Room Size Chart values
Small bedroom100 to 150 CADR
Medium bedroom150 to 250 CADR
Living room250 to 350 CADR
Open room350+ CADR

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Use the exact calculator

Home Air Air Purifier Size Calculator Calculate the CADR rating an air purifier should have for your room size and desired air changes per hour. Home Air Air Changes Per Hour Calculator Calculate air changes per hour from airflow in CFM and room volume for rooms, fans, purifiers, and ventilation planning.

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