The Mars STD248-1UA-OB/99-014 48" Unheated Air Curtain from Mars Air Systems is a powerful yet quiet solution for commercial kitchens and restaurants. Designed for doors up to 10 feet tall, this air curtain creates an effective environmental barrier, keeping out flying insects, drafts, and windborne pollutants while maintaining interior temperature. Its 1/2-horsepower, direct-drive motor operates at low noise levels, ensuring it doesn’t disrupt kitchen staff or customers. With automatic thermal overload protection and a 5-year warranty, this durable air curtain is built to withstand the demands of high-traffic restaurant environments. Perfect for restaurants, fast-food chains, and commercial kitchens, this unheated air curtain delivers energy efficiency, cleanliness, and long-lasting performance.