The Vevor air curtain creates a powerful 1200 CFM air wall to help block dust, odors, and outside air from entering indoor spaces. Its dual-speed operation lets you choose between quieter, energy-saving performance or stronger airflow as needed. The slim metal body is designed for corrosion resistance and long-term durability, while the pure copper motor supports stable operation. This wall-mounted unit is made for indoor residential and commercial entryways and includes magnetic door switches for sliding or swinging doors.