Koanhinn 2 x 211+ Filter for Blue Pure 211+, Foldable Particulate and Active Carbon Filter

FRIENDLY FIT - 211+ + HEPA replacement filter elements are suitable for Blue Pure 211+ and MAX. Applies only to Blue Pure 211+. Does to Blue Pure 211, please check your model carefully before purchasing. 2-stage filtration-211+ filters last 4-6 months. The quality is than others - the 2-stage filtration ensures that the design of this 211+ filter is . High quality 211+ filter effective Easy to install - no complicated replacement steps are required. No additional tools are required. Replace and supplement the filter 211+ every 3-6 months.