IMPORTANT: All models come equipped with factory pre-installed thermostats to prevent fan operation when outdoor temperatures drop below 35°F.

【Functions; Applications】With an airflow of 540 CFM and ventilation type of air out, this Ventilator fan is designed for use in damp crawl spaces, basements, attics, and garages to effectively reduce humidity. It improves air circulation to combat condensation and prevent wood rot. Additionally, it serves for exhausting vent radon gas, treating wood gases and odors, and preventing their infiltration into living spaces.

【Key Features】Equipped with a built-in dehumidistat and freeze protection thermostat, this High-Flow Powered Ventilator Fan automatically turns ON/OFF based on the SET Humidity % Level within a humidity range of 5%-80%RH. The Dehumidistat control is overridden if the freeze protection thermostat detects low outdoor temperatures (35°F/1.7°C), ensuring optimal performance in varying conditions.

【Built-in Isolation Mesh; IP-55 Rated Axial Fan】Featuring an isolation mesh on the back to prevent reptile intrusion into crawl spaces, and an Aluminum Zinc Shell housing an IP-55 rated Axial Fan, this unit is highly resistant to liquids and dust, ensuring durability in humid environments with a long service life.

【Easy to Install; Operate Vent Fan】Measuring 15 x 10.2 x 2.8 inches, operating at 115 Vac ~ 50/60 Hz with 0.51 Amps, and emitting noise below 55dB, this Vent Fan offers easy installation and operation. It comes with an 8.7-inch fan and a 6-foot grounded power cord, with the faceplate adjustable to match non-standard foundation openings. Simply plug it in, set it, and enjoy hassle-free operation.

【2 Years Warranty; Safety Tested】Our crawlspace ventilation fan is fully compliant with electrical safety standards (ETL). Every AlorAir crawl space fan comes with a 2-year warranty and a professional customer support team ready to assist at any time. Should you have any questions or concerns, you can contact us directly—we are committed to providing you with the best after-sales support.