Standard Features - #1 rated professionally installed, whole-home HC16 filtration system* is now the Carbon Clean 16. - No ozone emissions a known lung irritant. The Carbon Clean 16 can reduce ground-level ozone in your home by up to 50%. - Provides whole-home filtration for optimal home comfort and air quality, with no additional energy costs. - MERV 16 Precision Pleat media filter (MERV 16**/CADR 1900***). - Compatible with any HVAC systemno additional power source needed. - 5-Year Limited Warranty on covered components.