All Surface Antimicrobial SHIELD is a uniquely durable and effective antimicrobial surface coating, and mold, mildew, fungi, algae, and odor inhibitor. Ideal for maintaining Antimicrobial Control, SHIELD is approved for use on all types of HVAC component and air duct surfaces , including surfaces that normally become wet during system ope
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Great product
First time we have used the product and it worked better than any other hvac chemical we have used!