Derek ColeGM, Simmons One Hour Heating & Air · AI HVAC Answers

UV Light: The Secret Weapon Against Growth #shorts

13 Feb 2026 · 1 min

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0:34

In this short, the speaker argues that ultraviolet (UV) light is an effective solution for preventing biological growth such as mildew and mold. He illustrates the point with a simple experiment: a damp doormat left in direct sunlight dries and becomes clean because UV radiation inhibits growth. He then points out that indoor air handling units lack exposure to UV light, which allows mold to develop, and recommends installing UV light within these systems to eliminate the problem.

Chapters

UV light will solve that problem. If you want to prove that point, everybody at home has that mat at the front or back of the house that has the mildew, and it's kind of wet and it's kind of damp. Take that mat, stick it out in the middle of the yard in the sunshine for a period of time, and that will be clean and dry. Because nothing can grow when UV is present. Right. So in the indoor air environment, in the air handler that is not present, so we have to make it present with UV light. Light. UV light will solve that problem.