Our Green Filters last a minimum of 3-5 years, so when they're dirty we simply remove them from the HVAC units and a clean set of filters is installed according to the filter change frequency defined by the customer.
Dirty filters are cleaned using a specially designed portable washing system which is housed in a 28' heated trailer. The system cleans using an "eco friendly" detergent and then dries each filter to maximize filter performance. The entire cleaning process requires 20 seconds per filter.
96 % of the wash water used is reclaimed.