Clean Guard, Clean Guard XL and Clean Guard CC are reusable maintenance bags specifically for use by HVAC contractors to clean wall-mounted mini-splits and ceiling cassette systems with Nu-Calgon cleaners/disinfectants when the indoor coil and blower require service. Clean Guard installs in seconds with its use of an industrial grade elastic collar that simply and automatically adjusts around the indoor unit. There is nothing more simple and quick to use in the market! The device provides 360-degree coverage to protect overspray on the walls, an integrated eight-foot drain line and heavy duty design to allow its reuse. For future use, Clean Guard simply needs to be rinsed, dried and stored in the five-gallon bucket used to collect the cleaning solution during service. The Clean Guard and Clean Guard XL now include hook-an-loop buttons on the opening to make it easy to dry out the mini-split and bag after use. The Clean Guard and Clean Guard XL are now treated with antimicrobial chemistry in the plastic to resist deterioration by mold and fungus!