Good Fit: For Deerma CM300S CM400 CM500 CM800 Wireless Vacuum , helping your vacuum cleaners to at their best again. High Performance Filter: This filter effectively and efficiently filters the passes through the vacuum to it traps particles before they re-expel the . High Efficiency Particulate Filters (HEPA) are a type of filter can remove at least 99.97 % of dust, mold, pollen and any other airborne polluting particles with high efficiency. Beneficial for allergy sufferers: Often the particles are collected by a vacuum are microscopic and not visible to the eye. However, even the smallest particles can irritate the nose, throat, or lungs, especially for anyone with allergies or asthma. Without realizing some vacuum cleaners can disperse back into the . This HEPA filter traps almost all particles and prevents from re-floating in the . Easy to Clean and Install: Unlike other types of filters, this filter is not easily blocked. When it's time to clean it, simply shake the excess powder in a container and then wash the filter under running water. Let it dry thoroughly before putting it back in the vacuum . To add this replacement filter to your vacuum, simply remove the old filter and twist it into place. Tips: The filter can be washed under running water and must be completely dry before reinstalling. Replace the pre-filter 6 months and the filter year for optimal cleaning performance. Replace or clean your filters regularly for optimal performance. Size: 50 x 42 x 37mm (approximately). color:Black+white Material:plastic Package Contents: 2 x hepa filter Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.