BIO-CLEAN is a revolutionary new "no rinse" black mold removal product formulated specifically for indoor cleaning and the disinfecting of evaporator and condenser coils from mold and bacteria accumulation. It is metal safe and will not harm the metal of any coil. BIO-CLEAN eliminates bad odors produced by mold and mildew, freshens and deodorizes interior environment Mold thrives in HVAC systems which not only can create serious health problems for the building's occupants, but makes the air-conditioner significantly less energy efficient. HVAC systems are the perfect environment for microorganisms, such as bacteria, algae and mold, to grow. Furthermore, HVAC systems spread these harmful contaminants, which may cause odors, damage to surfaces and toxic byproducts, to living and working environments.