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Noise is the biggest problem for indoor air filtration
@joeyfox HVAC engineer has a great page on this
@cleanairkits have low dB alternatives as kits or fully constructed
https://itsairborne.com/solving-the-hepa-filter-noise-problem-8fb3fdb37f98
@cmclase @joeyfox @cleanairkits it’s absolutely a problem when all the data on most available options is CADR at maximum speed as they are at the moment, but there are existing solutions available at acceptable noise levels where specifications for lower speeds are available. Will be interesting to see if any manufacturers look into using PC fans.