The Green Filter Cleaning Machine effectively and safely cleans your air filters. The recycling of dirty cartridge filers translates into immediate ROI as filters can be reused 3-6 times, depending on application. Ideal for cleaning dust collector filters, diesel engine intake filters, or any cartridge with an inner diameter greater than 6.5" and an outer diameter less than 20". The Green Filter Cleaning Machine will accept filter heights up to 32" (40" extended unit available). The filter cleaning mechanism requires 80 cfm of compressed air at 80 -100 psi to function properly.