Item Type: Nail Dust Collector Filter Quantity: 2pcs Size: Approx. 17.5 x 18cm / 6.9 x 7.1in 1. High efficiency filter screen 2. 0.1 micron and 0.3 micron cleaning efficiency of 99.7% 3. Air can pass through, but fine particles can't Cleaning method: 1. Clean the surface with a soft brush 2. Use a hair dryer to cool or blow on the back of the filter screen 3. The filter should not be cleaned with water or other liquids Package List 2 x Nail Dust Collector Filter 1Nail dust vacuum machine filter, 0.1 micron and 0.3 micron cleaning efficiency of 99.7%. 2Filter screen absorbs dust and needs to be cleaned regularly. The filter screen can be removed and is easy to replace. 3Can be cleaned with hair dryer. 17.5 x 18cm / 6.9 x 7.1in of the size makes it perfect matching. 4Frame is made of high quality material, high strength, not easy to deform and durable. 5Including 2pcs of filter screen to meet different needs, nail vacuum cleaner accessories.