Compatible Models: For MOOSOO K12, K12 Pro, K13 Cordless Vacuum Cleaner / For Genius Invictus One 1.0 X7/2.0 Handheld Vacuum Cleaner. Please check your vacuum cleaner model number before purchasing.Made of high density material to catch small particles like fine dust, dirt, sawdust, cold ash, wood chips, fine powders and construction debris.The filter can block 99.97% of dirt, dust, pet dander and other particles as small as 0.3µm, so it can reduce dust and other allergens in the air you breathe.Washable and reusable filter, just rinse with clean water and air dry completely to reuse.As part of normal maintenance, it is easy to install, just disassemble the dust cup, twist and remove the old filter to replace the new replacement filter.Package Included:3 x Filters. Note: The data are all manual measurements, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, whichever is the actual object received.