Upgrade air circulation with the Mars Air Systems N236-1UD-OB N ETL Sanitation air curtain. Designed specifically for commercial restaurant use, this industrial NSF N2 Series air curtain is perfect for 36" wide doors. The unheated air curtain features a powerful 1/2 HP motor, ensuring optimal air flow and circulation. The obsidian black powder-coated cabinet adds a sleek and stylish touch to any restaurant entrance. With a voltage of 208-230v/60/1-ph, this air curtain is energy-efficient and cost-effective. It is also cETLus, CE, and NSF certified, guaranteeing its quality and safety. Improve indoor air quality, prevent insects and dust from entering, and maintain a comfortable temperature with this reliable and durable air curtain. Upgrade your restaurant's air circulation today with the Mars Air Systems N236-1UD-OB N ETL Sanitation air curtain.