Recommend a very quiet, low-CFM exhaust fan?
I need the quietest, continuous-run bath fan available for a small building. It’s a 400-square-foot, 4500-cubic-foot space to be used as a painting studio and occasional guest quarters. One bath, no kitchen. I’m expecting it to be 1-2 ACH50.
The plan is to install the fan in the bathroom ceiling, although there is a very small concealed space that could house an inline fan. I don’t think this project needs a HRV, and in any case there isn’t anywhere to install the ductwork for one.
I usually use 80 CFM Whispergreen fans in my projects, and they work fine, although I don’t really think they “whisper”. The 50 CFM Whispergreen model does not have the variable speed feature. My goal is to install something that can run at a low CFM rate most of the time, and ramp up if someone uses the shower. Most of all, it needs to be quiet.
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