Enviromaster True HEPA canister vacuums are designed with critical Type A filtration for the removal of lead, mold, ceramic dust, aluminum, fiberglass and many other materials. Excellent for use in clean rooms, hospitals, and industrial plants or wherever air and dust pollutants exist. EPARRP Compliant. Features: -HEPA filter system consists of a primary certified absolute filter, double layer inter-mediate micro filter and totally enclosed two ply disposable paper bag. -Tank styles glidemobile style are equipped with handle, two 2.5" Front casters and two 8" Rear wheels, the caster tanks have four 2.5" Ball bearing swivel casters. -Cold rolled steel tanks finished with epoxy interior and baked enamel exterior, fabricated of 20 Gauge steel with reinforced ribs that strengthen tanks for handling higher waterlift, double roll over bottom seal prevents leaking. -HEPA filter design: Constructed of a outer casting and micro-fibered glass paper filter media separated by cor.