The fan creates negative pressure in the foundation to pull air through the foundation.
Foundation vent fan with humidistat.
An optional de humidistat activates the fan when humidity exceeds the owner determined setting 20 80 in conjunction with the built in temperature control.
It prevent excessive humidity and remove cooking odors tobacco smoke in rooms up to 105 sq ft.
If you re looking for a budget friendly exhaust fan with humidity sensor don t miss broan nutone qtxe110s.
The eliminator attaches to virtually any standard foundation vent.
Now if you live in a climate where you have a low outside humidity all the time and you have a fan pulling that outside air into a crawl space that s high in humidity then that is true.
Climates like parts of colorado where relative humidity is extremely low will dry a crawl space from the outside.
It is wired for automatic operation when the temperature exceeds 50of.
Thus it keeps your bath space and house smelling fresh and clean.
110 cfm rating of this vent fan is sufficient for most bathrooms.
It also helps vent radon gas treated wood gases and odors preventing them from entering your living spaces and threatening your family s health.
A small fan is encased in the housing of the vent and runs continuously at a low speed when the humidity level exceeds the setting on the humidistat.
Durablow mfb m2d air out stainless steel 304 crawl space foundation dual fans ventilator built in dehumidistat freeze protection thermostat radon mitigation 4 5 out of 5 stars 371 crawlspace humidistat controller system gauge and monitor humidity and control ventilation fans in home basements crawl spaces and garages.