****It is used; it is unknown if any parts are missing or if it works 100%******WARMOASIS 220 CFM Crawl Space Vent Fan with Dehumidistat & Thermostat, Dual Knobs for Speed & Humidity Control, 3000 RPM, Reduces Indoor Radon, Humidity & Odors, High-Efficien

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More features

• 【Rapid Humidity Dissipation】With an airflow of 220 CFM and a rotation speed of 3000 RPM, this crawl space fan with humidistat effectively enhances indoor air circulation, reduces radon gas, odors, and more, improves the indoor air environment, and provides you with a more comfortable living environment.
• 【Adjustable Fan Speed】This crawl space fan is equipped with a speed adjustment button, allowing you to adjust the fan speed according to your own needs. The noise level will remain below 52dBA, and as the fan speed decreases, the noise will also reduce—without affecting your daily life.
• 【Presettable Humidity】This crawlspace ventilation fan lets you preset humidity levels as needed. It auto-stops when indoor humidity reaches the preset level, helping cut electricity costs. With an adjustable humidity range of 20%-80%, it also features a thermostat to avoid operation below 35℉, extending service life.
• 【Service Life > 8 Years】Crafted with premium materials and matte coating, this crawl space exhaust fan boasts an 8+-year service life—durable for long-term use in dark, humid environments. Additionally, if there are any quality issues within 3 years, we can promptly replace it with a new one, providing you with a simple, straightforward, and worry-free after-sales guarantee service.
• 【Easy Installation】: This crawlspace fan has dimensions of 18" x 9" x 2.3" and comes with a 4.92'-long grounding wire. It is simple and convenient to install, and one person can easily finish the installation within half an hour. This crawl space fan is suitable for a variety of application scenarios, including crawl spaces, basements, garages, etc.