What bathroom fan flow does the speaker suggest reducing or dampering to?

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

Optimize Closet Airflow: Prevent Mildew and Keep Clothes Fresh

6 Mar 2025 · 0 min

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0:28

A short YouTube excerpt (by Derek Cole) giving practical home-improvement advice on ventilation. The speaker emphasizes keeping air moving in closets to prevent mildew and stale clothing by lowering humidity and circulating air. He also advises that bathrooms do not need excessive exhaust and suggests reducing or dampering bathroom fan flow to around 50 CFM when addressing closet ventilation or humidity issues.

Questions this video answers

About 50 CFM.

You don't need it in a closet. You just want in a closet. All you're trying to do is keep air moving to prevent mildew and stuff like that from growing and stale. You know, in the closet on clothes and stuff, you're trying to keep the humidity down and keep air circulating. Bathroom, you don't need it. You don't need but a certain amount in there, and we might damper it down to 50 CFMs. So even though it's a 6, might not be, but 50. And you can kind of basically go through a calculation in your head when you're having problems.