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Bathroom Exhaust Fans

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Browse VentingDirect for Bathroom Exhaust Fans

Bath Fan Product Overview

Excess moisture in the bathroom can lead to mold, mildew, peeling paint, warping, wood rot, and ruined insulation. Proper bathroom ventilation will prevent damage and extend the life and value of this space.

  • Bath fans are installed in the ceiling and offer your basic bathroom ventilation needs. Some bath fans include lights, heaters, or both.

  • Inline bath fans are installed in the attic or slightly away from the bathroom. Benefits of an inline fan include more power (higher CFM) and lower sound decibels (sones). This is attributed to the fan unit being installed away from the ceiling.

  • Decorative bath fans offer an elegant solution to bathroom ventilation. Contemporary and traditional styles are featured.

Cubic feet can be calculated by multiplying the room's length (x) width (x) height. Or you can use our bath fan calculator and let us suggest the appropriate CFM for your bathroom. The following is a brief breakdown to determine how powerful your bath fan should be:

  • 112 - 224 Cubic Feet: Up to 30 CFM
  • 225 - 315 Cubic Feet: Up to 42 CFM
  • 316 - 462 Cubic Feet: Up to 62 CFM
  • 463 - 539 Cubic Feet: Up to 72 CFM
  • 540 - 672 Cubic Feet: Up to 90 CFM
  • 673 - 756 Cubic Feet: Up to 101 CFM
  • 757 - 840 Cubic Feet: Up to 112 CFM

Additional Resources



Have a bath fan question?

Find answers for industry terms, installation, buying, and more!



Tip: When determining how powerful your bath fan should be (CFM), also consider the duct run. Ducting that is longer can create "static pressure" which can skew your calculations and leave you with undesirable ventilation.



"Your bathroom will naturally collect its fair share of moisture. With hot water coming from the shower, bathtub and bathroom sink, humidity and moisture can't be avoided. But..." (continue reading)

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