Harmful pollutants and irritants in your home's air can disrupt your quality of life. Keep your home fresh with replacement HEPA filters and rid your air of dust， smoke， pet dander， pollen， mold and more. Does just the thought of springtime make you sneeze. Arm yourself with HEPA and battle pollen， ragweed and grass allergies to help prevent seasonal allergies. A HEPA filter can reduce the amount of pet hair and dander in your air， so you can breathe easy around your pets. Unpleasant odors from cooking， smoke， pets or other projects can linger in your home. HEPA filters can help keep your home smelling its freshest. HEPA filters can remove particles 0.3 mic in size， improving your home's air quality and reducing the spread of sniffles and sneezes.

Fits Alen FLEX HEPA-pure FL40， FL40-carbon， FL40-silver-carbon

Protects filter against growth of harmful bacteria/microbes and includes a pre-filter layer， which helps extend the life of the filter

Removes dust， pet dander， mold spores and pollen from the air， creating an allergy and asthma friendly environment

Recommended to replace filter every 9-months to 12-months with occasional use and every 6-months to 9-months when using your unit on a more regular or day-to-day basis