What do Bugs, mites, spores, dead skin and dander have in common....they are all in your home! Using a traditional filter in your Roomba robotic floor vacuum expels all these creatures back in the same air you and your family breathe. Robot Add-Ons is proud to announce the first and only HEPA type filter for Roomba! Our two stage HEPA type filter material traps 99.97% of everything it gets a hold of along with smog, carcinogens, and viruses. Combined with its environmentally friendly construction and Max-Flo TM filtration system, our long lasting HEPA type filter will help purify the air in your home for a cleaner, safer living environment! Works on all Roomba 500 series robots except robot SKUs 53601 and 55101.