Devanti Stick Vacuum Cleaner Replacement Filter - 3 PackOur Devanti Replacement HEPA Filter ensures that up to 99. 97% particles which are 0. 3 microns or larger are eliminated. This is essential for anyone who is susceptible to allergens such as dust mites, pet shedding and grass pollens. And it is also important to replace your HEPA filter in your vacuum cleaner periodically to ensure maximum efficiency. If you own a Devanti 150W Cordless Vacuum Cleaner, this replacement HEPA filter is totally compatible