Efficacy is also going to vary with usage. I've got a 900CFM fan, but I can stil... | Hacker News

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		uranium on May 19, 2024 \| parent \| context \| favorite \| on: Nitrogen dioxide exposure due to gas and propane c... Efficacy is also going to vary with usage. I've got a 900CFM fan, but I can still smoke up the kitchen pretty badly if I sear on the front burner, even with the fan on high. However, if I use the back burner, even with the fan on low, the air stays pretty clear.

chasebank on May 19, 2024 [–]

Are you sure it's really a 900CFM fan? A lot of cheap fans on amazon claim they are high CFM and when you look at components, are like 400 at best. High CFM fan will run you at least $2k to start.

uranium on May 21, 2024 | [–]

It's a name-brand fan bought at a local showroom a decade ago. IIRC it was under $1000 at the time.

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