Description
Curtron S-MI-120-3 121″ Medium Industrial Air Curtain – CUSMI1203
Stop flying insects, airborne pollutants, and inclement weather from entering your establishment with Curtron S-MI-120-3! This medium industrial air curtain covers areas up to 120″ wide and doors up to 14′ high. Its housing is made of stainless steel for increased durability and endurance. The S-MI-120-3 has three 1-speed horsepower motors.
Features
- Covers areas up to 120″ wide
- (3) 1-speed 1 HP motors
- For doors up to 14′ high
- Stainless steel housing
Specifications
- Model: S-MI-120-3
- Dimensions: 15″ H x 121″ W x 15.38″ D
What our Experts Think
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Medium-Duty Industrial Strength – Designed for frequent use in warehouses, factories, and distribution centers.
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121″ Wide Coverage – Effectively seals large doorways against outside air, dust, and flying insects.
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Energy-Saving Performance – Helps reduce heating and cooling costs by maintaining indoor climate control.
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Cleaner, Safer Workspace – Improves sanitation by blocking contaminants from entering.
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Durable Construction – Built for long-lasting reliability in demanding commercial environments.
Q&A
Q: What is the Curtron S-MI-120-3 Air Curtain?
A: A 121″ wide medium industrial air curtain (model CUSMI1203) designed to provide a powerful air barrier for larger commercial and industrial doorways.
Q: What does it do?
A: Prevents dust, insects, fumes, and outdoor air from entering while maintaining interior temperatures and reducing energy loss.
Q: Where can it be used?
A: Ideal for warehouses, distribution centers, food processing facilities, and manufacturing plants.
Q: How does it improve efficiency?
A: Reduces heating and cooling costs, improves employee comfort, and helps maintain sanitation standards.
Q: What size openings does it cover?
A: Fits doorways and entrances up to 121″ wide.
Q: Is installation straightforward?
A: Yes, designed for easy wall or ceiling mounting above large openings.
Maintenance Tips
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Clean intake and discharge grilles regularly to maintain airflow efficiency.
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Wipe exterior housing with a soft cloth and mild cleaner—avoid abrasives.
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Inspect motor, fan blades, and wiring connections periodically.
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Replace or clean filters per manufacturer’s schedule for optimal performance.
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Check mounting hardware and brackets to ensure secure installation.






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