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The AlorAir VentirMax 570SD is a crawl space ventilator fan that moves up to 570 CFM to keep damp, enclosed spaces dry. It stands out for its built-in temperature and humidity controller, five speeds, and IP55-rated housing. Owners like the set-and-forget automation and the memory that keeps settings after a power cut. It suits crawl spaces, basements, and attics up to about 950 sq ft, and it competes with simpler fans by adding climate control and a barrier mesh.
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Lowest price we've seen: $77.69 on Nov 11 at Amazon. Tracked across 4 stores since Nov 11.
Owners of the VentirMax 570SD generally praise its strong airflow and the convenience of the built-in humidity controller. They say it keeps crawl spaces noticeably drier and that the memory function avoids resetting after outages. Some find it louder than expected at higher speeds and note that the controller takes some trial and error to dial in.
The AlorAir VentirMax 570SD is an exhaust ventilation fan that moves 570 cubic feet of air per minute. It circulates air constantly and reduces moisture, and it has a built-in dehumidifier suited to spaces up to 950 sq.ft. It is designed for indoor use in attics, garages and basements.
A control panel sets temperature, humidity and time. Humidity can be adjusted from 1% to 99% RH. The fan has a 24-hour timer and 5 speed settings. A memory function keeps the previous settings after a power outage.
The fan is IP55-rated, which protects against dust and splashes. Its noise level is limited to 55 dBA. A barrier mesh keeps unwanted intrusions out. The compact design installs in a few steps.
