This is a nuine,OEM Lennox Healthy Climate X6670 air designed to work with any HVAC system. The HCF16-11 provides effective filtrat to make any home's air healthier. Unlike many other whole home air cleaners,it doesn't add to the cost of running the heating and cooling system. MERV 11 media (MERV 11*/CADR 520**). Removes up to 85% of particles down to 3 microns*** *MERV = Minimum Efficiency Reporting Value. Describes the 's ability to ture particles and rans from 1 to 16. Typical fiberglass = MERV 1. The higher the MERV rating,the better the filtrat **The Clean Air Delivery Rate (CADR) represents the cu feet of clean air produced per minute ***One micron = 1/25,000 of an inch in dieter Price For: Each Item: Fits Brand: Lennox Country of Origin (subject to chan): Mexico.