Think Crucial Replacement for Dyson DC14 DC-14 Filter & Seal Kit, Compatible With Part # 90142-02, 921623-01, 901420-01, 904979-02 & 905401-01 HIGH QUALITY AIR FILTER that can replace your Dyson Filter. Get back to having a clean air to breathe again! Fits all Dyson DC-14 Vacuums. HEALTHIER LIFESTYLE! No one wants breathe dirty air in their home and if you don't clean your air filter that will be exactly what you'll be doing! Replacing your filter will help clean your air purifier's air and allow for a healthier lifestyle! This filter helps keep our household dust, pollen and mold spores. EASY TO INSTALL so you can get back to cleaning as soon as possible! Simply remove your old filter and put this brand new one in it's place! SAVE MONEY by replacing your seals! Old seals can cause your motor to run harder to make up for lost vacuum power. Motors that run harder reach the end of their lifespan sooner! That hurts you wallet with unnecessary replacement costs and a higher electric bill! GUARANTEED SATISFACTION because of a 30 day full money bank guarantee and a trusted Think Crucial warranty. We are so confident in our products that we have no problem giving you every penny back if you're unhappy with your purchase. You won't see promises like that from big box brands!