Window fan with reversible functionThis square fan is a two-way linkage window exhaust fan that supports both exhaust and intake modes to promote air circulation, remove stale air, and keep indoor air fresh. Wall fan with large airflowProvides 200m/h exhaust airflow and 180m/h air intake. Can be mounted on walls as a whole-house fan to help remove moisture, tobacco smoke, and cooking odors, keeping your home smelling fresh. Durable and safeFeatures a permanently lubricated, wear-resistant sleeve bearing motor and high-quality rust-resistant copper materials. Built-in overheating protection offers benefits such as corrosion resistance, long service life, stable speed, safety, and low noise. The shell is made of ABS material, which is eco-friendly, lightweight, durable, and features a modern design suitable for room decor. Ideal for greenhouse ventilationTemperature and humidity control are essential for greenhouse success. This ventilation fan helps circulate air in and out, maintaining optimal humidity and temperature levels for healthy plant growth. Multiple applicationsThis exhaust fan with pull switch is suitable for attics, bathrooms, kitchens, windows, basements, garages, offices, living rooms, and other areas requiring ventilation. Easy to install on walls or windows. Note: The product includes a high-quality 59-inch power cord without a plug.