Description:Compact Ventilation: This innovative ventilation system is specifically designed to fit into existing air conditioner wall holes, providing a seamless way to refresh indoor air without drilling new openings.Efficient Airflow: As a high-performance exhaust fan, it delivers an air volume of 40 cubic meters per hour, effectively removing stale air, odors, and dampness from bedrooms or small living areas.Versatile Compatibility: This wall ventilator comes with three selectable PVC pipe diameters (50mm, 63mm, and 75mm) to ensure a perfect, snug fit for various standard wall hole sizes.Smart Control: The air conditioner hole fan features continuous speed regulation and optional wireless controller control with 2/4/8/12-hour timing functions, allowing you to customize the airflow and function time easily.Safe & Quiet: This small hole exhaust fan operates on a safe 12V low-voltage DC power supply and maintains a low noise level of approximately 40dB at low speeds, ensuring a peaceful environment.
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