The Euroclean GD 930 Series canister vacuum offers three versions to meet a wide range of cleaning needs. The large 4 gallon dust bag allows for extended cleaning time and the true H.E.P.A. filtration filters 99.97% of particles 0.3 microns and larger. The GD 930 canister vacuum is quite simply our biggest, most powerful and best canister vacuum. It features our largest dust bag (4 gallons) so that you can vacuum longer without having to stop and change bags. Both standard and high filtration bags are offered. The H.E.P.A. GD 930 models feature an oversized true DOP MIL-STD-282 H.E.P.A. filter mounted before the motor. The huge surface area results in less restricted air flow to maximize vacuum performance no matter what type of material is being vacuumed. With 2,880 square inches of filter media, the filter can be used longer before it needs to be replaced.