Compatibility: Compatible with Puppy T11 / T11 Pro Wireless Handheld Stick Cyclone Cordless Vacuum Cleaner.Washable: This pleated or sponge filter can be washable. Air-dry filter completely for at least 24 hours before putting it back into your hand vacuum. Suggest rinsing the filter once every month.Easy to Install: Remove the dirt cup from the cleaner, remove the old filter. Install the new filter in place.Replace the filter regularly, make your vacuum providing best cleaning performance.Practical: This HEPA Filter Captures 99.99% of particles ejected while cleaning, including particles as small as 0.3 Micrometres, expels non-allergenic fresh air.Please clean the filter after each use to keep the vacuum working with high-efficiency.Effect: High efficiency particulate and double-layer filter catch the invisible particles more efficiently,offer you a clean and fresh air environment.Tight Mini fibre brush roller,will remove the stubbon dirt from the floor easily and protect the floor when cleaning.Colour:Photo ColorMaterial:plasticPackage Contents:4 x Filter4 x Filter cotton1 x Cleaning brushOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.