Fits the Soniclean WhisperJet C2 Canister Vacuum Cleaner. The WhisperJets U15 ULPA filtration system captures particles almost 3X smaller than HEPA filters. The WhisperJets ULPA filtration will allow you to achieve unprecedented air filtration performance unlike any other residential vacuum cleaner on the market. Includes: (7) C2 Canister Filter Bags (1) Motor Protection Filter (1) U15 ULPA Exhaust Filter Filter Bag Filtration Rating: H10 HEPA Exhaust Filter Filtration Rating: U15 ULPA C2 Filter Bags and Motor Protection Filter - Made in China U15 ULPA Exhaust Filter - Made in France *Soniclean recommends replacing the ULPA Exhaust Filter every 6 months for optimal suction and filtration performance.