Exhaust Fan

Type of Exhaust Fan

I recommend purchasing an inline exhaust fan.  Inline means its installed directly into the ducting, rather than at the end of the ducting like you are used to seeing with a bathroom fan for example.  An inline unit is more powerful than an overhead unit, generally due to the fact that they are bigger because they have more space to be installed.

Inline fans are also much quieter because the fan is not directly over your head but rather somewhere outside of the room.  Most people can barely tell the fan is on when its running because of where its located.

I’m particularly fond of Broan inline exhaust fans.  I have used Broan’s for both of my room.  My first room’s exhaust fan was a Broan L1500L and the second room is a Broan L700L.

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View of the exhaust fan during the construction process of my first cigar room.

Exhaust Fan Strength

I recommend a full air change every 1-2 minutes.  If your room was 12′ x 10′ x 8′ (L x W x H) for example that would be 960 cubic feet.  In order achieve an air change every 1-2 minutes you would need a unit in the range of 480-960 cubic feet per minute (CFM).  This is significantly higher than your average bathroom fan which is 50-100 CFM.

As a rule of thumb it is always better to have a little bit more power than needed compared to less.  If you connect the unit to a variable speed controller, rather than a standard electrical switch, you can dial your overall CFM to exactly where you want it.  You may want more air pull in the room when there are 3 people smoking compared to 1 person as an example.

My first room was probably a bit over-powered with a 1200 CFM exhaust fan, but the ability to turn the strength down with the variable speed controller made that a non-issue.  My second room I modified my approach slightly and went with a 700 CFM unit.

Exhaust Fan Strength Calculator

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Controls (second cigar room)


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Exhaust grille in the ceiling (second cigar room)


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Exhaust grille in the ceiling (first cigar room)