Building a small spare bedroom. There will be no Windows for some reasons. So i would like to add a ventilation fan to keep the air circulating and less warm? Is it enough to have 1 fan to move the air outside,or should i have 2? One for move outside air inside,and 1 for move the inside air outside? Other ideas welcome also.

Not enough data

18 minutes ago, Yellowtail said:

Not enough data

19 minutes ago, Yellowtail said:

Not enough data

Extractor fan enough or/and another one to move air inside also,ok:)?

Haier, cheap and very good.

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2 hours ago, sanook 1 said:

Extractor fan enough or/and another one to move air inside also,ok:)?

That was already clear.

How big is the room?

How big is the fan?

Is there a ceiling?

If you have an exhaust fan, where is the exhaust going?

Where is the replacement/make-up air coming from?

Does the room have exterior walls? If so, a louver on one side and an exhaust fan on the other works well. The fan should be sized such that it turns the air at least five times an hour.