AutoFlow Bathroom Fan with Humidity Sensor, 30-160 CFM EC Motor, 10.2" Retrofit Kit & 4" Duct Included

<h3><strong>SPECSTAR Constant Airflow Smart 3-Speed Bathroom Exhaust Fan</strong></h3> <p>This&nbsp;SPECSTAR exhaust fan features a brushless DC motor that reduces energy use by up to 50%. It includes a built-in temperature and humidity sensor that automatically adjusts between three fan speeds. The constant airflow system ensures long-term, steady ventilation.</p> <p><strong>Energy-Saving&nbsp;EC&nbsp;Motor</strong><br> 120 V/ 60&nbsp;Hz , 50% energy saves up to<br> <strong>3 Speed Modes</strong><br> Silent Mode, Normal mode, Turbo Mode<br> <strong>Auto Humidity Sensing</strong><br> Automatically adjusts&nbsp;to keep&nbsp;&nbsp;airflow steady<br> <strong>Quiet Operation</strong><br> Whisper- quiet comfor provides quiet comfor, day or night<br> <strong>Flexible Mounting </strong>Frame<br> Pro-drilled with multiple screw holes to fit various structures and screw types.<br> <strong>Safe Electrical Design</strong><br> Designed to reduce electrical risk and enhance safety.</p> <h3><strong>Specifications</strong></h3> <p>Material:&nbsp;&nbsp;PP, ABS<br> Voltage: 120 V<br> Exhaust Volume:&nbsp;30/110/160 CFM<br> Panel Size:&nbsp;&nbsp;11.8 x 11.8 inches<br> Recommended Mounting Size:&nbsp;10.2 x 10.2 inches (New Install)<br> Recommended Mounting Size:&nbsp;Fits existing 9.6"–10.8" cutouts (Replacement)<br> Duct Diameter:&nbsp;4 incehs<br> Fans Power:&nbsp; 45W<br> Rotate Speed:&nbsp;330–1745 RPM</p>

• 𝐂𝐎𝐍𝐒𝐓𝐀𝐍𝐓 𝐀𝐈𝐑𝐅𝐋𝐎𝐖 𝐒𝐘𝐒𝐓𝐄𝐌 𝐅𝐎𝐑 𝐒𝐓𝐄𝐀𝐃𝐘 𝐏𝐄𝐑𝐅𝐎𝐑𝐌𝐀𝐍𝐂𝐄: Unlike conventional exhaust fans, this unit uses automatic airflow regulation to maintain consistent ventilation. When duct bends, static pressure, or dust buildup occur, the fan adjusts motor speed to maintain your desired airflow. Even after long-term use or changes in duct conditions, it continues to operate reliably—an essential feature for stable and lasting bathroom ventilation
• 𝐓𝐇𝐑𝐄𝐄-𝐒𝐏𝐄𝐄𝐃 𝐀𝐔𝐓𝐎𝐆𝐋𝐎𝐖 𝐃𝐄𝐒𝐈𝐆𝐍: Equipped with SPECSTAR's exclusive AutoFlow Technology, the fan intelligently shifts between three speed modes based on humidity levels. At under 50% humidity, it runs a quiet 30 CFM mode; When humidity rises above 50%, it switches to 110 CFM for enhanced airflow; At 80% or higher, the system activates a powerful 160 CFM mode to rapidly remove steam and odors—delivering targeted, efficient moisture control when it matters most
• 𝐒𝐌𝐀𝐑𝐓 𝐇𝐔𝐌𝐈𝐃𝐈𝐓𝐘 𝐒𝐄𝐍𝐒𝐈𝐍𝐆: Built-in high-precision sensors constantly monitor your bathroom’s humidity and automatically switch between silent, regular, and high-speed ventilation modes. Unlike traditional fans that only turn on or off, this fan adjusts airflow dynamically—no manual input needed. In silent mode, noise drops to just 0.1 Sone and power consumption is minimal, making it perfect for 24/7 use. Quiet enough for nighttime operation, it’s ideal for 86–129 ft² bathrooms, laundry rooms, and toilets