The Mars N236-1UA-OB 36" unheated air curtain is a high-performance solution for commercial kitchens and restaurants, designed to maintain separation while preventing cross-contamination, drafts, and flying insects. At a height of 7 to 8 feet, this industrial air curtain ensures a clean, controlled environment for food preparation areas without obstructing doorway access. Its powerful 1/2-horsepower motor operates quietly with adjustable speed settings for noise reduction, making it ideal for high-traffic restaurant kitchens. The unit includes an automatic switch (99-014 door limit switch) for hands-free operation, ensuring convenience and efficiency. Constructed from heavy-gauge, corrosion-resistant metal with thermostatic powder coating, this air curtain resists rust and static charge, providing durability in demanding commercial settings. Compliance with the National Electric Code (NEC) and a 5-year parts warranty add to its reliability. Whether you're looking to enhance food safety, reduce energy costs, or improve workflow in your kitchen, this unheated air curtain from Mars delivers superior performance and long-term value. Ideal for industrial settings where temperature control and contaminant separation are critical, this product is built to meet the rigorous needs of professional kitchens.