PRO TECT DUCT-SHIELD prevents construction dust and debris from entering the ductwork system and significantly reduces cleaning costs. This clear, self-adhering protective film has a high tack water-based adhesive, with anti-bacteria agent, suitable for all types of duct work and will not leave a residue on the metal after removal. The high quality polyethylene is highly resistant to tears or punctures. Satify SMACNA guidelines during construction by providing temporatry closures on open ductwork.