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Portable Duct Cleaning Vacuums

CLEAN HVAC SYSTEMS FASTER
AND MORE EFFICIENTLY

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Determining the number of abatement hepa-aire units needed

Air changes per hour (ACH):

Safety Margin (compensates for airflow losses such as duct leakage, filter loading)

Select the HEPA-AIRE model or the peak airflow rate needed for the room CFH:

To achieve 6 air changes per hour with a safety margin of 10% in a room containing 105,600 cubic feet.