With a Big Air Carbon Filter, gardeners get the great odor-reducing
power for which Mountain Air is known, but with even greater air-moving
capacity! Responding to customer requests, Mountain Air increased the
airflow rating of the filter to approximately 200 cfm, shortening its
lifespan to roughly two years. When attached to a ventilation system’s
exhaust, it removes 99% of odor-causing organic particles in one pass.
4” flange included.