Blueair Smart Filter For 7700 Series, Compatible With Healthprotect 7710i, 7740i, 7770i And 7775i, Black

Product Summary

• Combination filter- Particle layer captures pollen, dust, mold, dander, smoke, viruses and bacteria, and more, Activated carbon layer absorbs gases, odors, chemicals, and more.
• Genuine Blueair replacement filter specifically designed to maintain premium performance over time and ensures your warranty remains intact
• Accurate tracking helps you get the most out of your filter and eliminate unnecessary replacement with an algorithm to calculate filter life, Maximum of 1-year filter life