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WHEN SHOULD YOU USE CHEMICAL
BIOCIDES?
An air duct cleaning professional may recommend the use of chemical biocides to kill odor-
causing microorganisms such as bacteria and fungi. As much as you are looking to eliminate
bacteria growth and odor, you need to understand that chemical biocides come in different
forms, with varying properties and pose certain health risks when not used correctly. It’s
generally agreed that the application of chemical biocides is an effective method of cleaning
air ducts as long as a qualified cleaning professional uses the right product properly.
Mild fungistats and bacteriostats remove mold, mildew, and bacteria odor from your ducts,
and there is no need to vacate your home during the application. Stronger solutions are good
at eliminating both disease and odor-causing microorganisms on hard and non-porous
surfaces.
Nevertheless, you will be required to vacate your house during application and wait for about
an hour or so for the chemical to dry completely. Additionally, you should never allow a
cleaning professional to use the substances if you or any other house occupant is sensitive to
such treatments.