Eureka CMF-1 2 Filters. These Eureka filters are sure to get your Eureka vacuum back to feeling like new. If you're an allergy sufferer, replacing your filters for everything in your house is a necessity and your vacuum is no different. This are sure to help keep your homes air clean and help improve your vacuuming. High quality air filter that can replace your Eureka dcf-21 filter; get back to having a clean air to breathe again; this filter fits Eureka/sanitaire airspeed bagless vacuums Healthier lifestyle; no one wants breathe dirty air in their home and if you don't change your vacuum filter that will be exactly what you'll be doing; replacing your filter will help clean your vacuum's exhaust 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; compare to Eureka part no. 67821, 68931, 68931a, ef91, ef-91, ef-91b Save money by using a new air filter; when your vacuum cleaner has a clogged or dirty air filter it can cause it to work harder which will end up hurting your electric bill MW147