LENNOX HEALTHY CLIMATE HC16 PRO-INSTALLED FILTER SYSTEM WAS RATED # 1 BEST WHOLE-HOUSE AIR PURIFIER BY CONSUMER REPORTS DECEMBER 2007 ADDITION. THIS SYSTEM CAN BE INTALLED TO YOUR FORCED AIR HEATING OR COOLING SYSTEM QUICKLY AND EASILY. FOR A LIMITED TIME YOU CAN RECEIVE A FREE HC16 FILTER SYSTEM WITH THE PURCHASE OF ANY NEW LENNOX SIGNATURE SERIES GAS FURNACE OR SIGNATURE SERIES CENTRAL COOLING SYSTEM BLOWER AND OUTDOOR AIR CONDITIONER!! ALSO AVAILABLE IS THE LENNOX PCO AIR PURIFIER SYSTEM WITH UV LIGHTS AND MERV 16 FILTRATION SHOWN HERE!!