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SwiSHa85

SwiSHa85

Well-Known Member
Works fine for either intake or exhaust. Like I said i've used that cheap fan as a exhaust for 2 years no issue. If your space is small 100 cfm is alot of air.
 
Dankestsmell

Dankestsmell

Well-Known Member
SwiSHa85 said:
Works fine for either intake or exhaust. Like I said i've used that cheap fan as a exhaust for 2 years no issue. If your space is small 100 cfm is alot of air.
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Awesome, Exacutly what im looking for! Thanks did you have a Filter hooked up to it? Or is that even needed in beginning
 
coreywebster

coreywebster

Well-Known Member
Duct boosting fans are not to be used with carbon filters because they are for just moving air down a duct that already has a proper inline fan attached. They do not handle resistance. Seen a lot of folks fail trying to use them.
But it might work with just a filter and zero bends or duct.

A proper extractor fan can lose 10% per bend, 20-30% for a filter and 5% per meter of ducting. Although there are many "proper" extractor fans and results depend on the impeller type. A box fan can shift a huge amount of air for low wattage but put more than a few meters of duct and a filter on it and its down to 40-50% airflow. A centrafugal fan can shift a bit less air overall but some only lose 20-30% on huge lenths of duct and many bends. They have different pressure ratings. Operate differently.

There are lots of cheap fans that work these days. Hundreds of second hand ones too.
 
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