A 15,000 CFM (Cubic Feet per Minute) exhaust fan is a high-capacity fan typically used in industrial, commercial, or large residential applications to remove large volumes of air efficiently. Below are some key considerations and specifications:

1. Applications:
- Industrial Use: Factories, warehouses, or workshops for removing heat, smoke, fumes, and odors.
- Commercial Use: Restaurants, shopping malls, or auditoriums for ventilation and air quality control.
- Agricultural Use: Livestock barns or greenhouses to manage air circulation.
- Residential Use: Large garages or attic spaces in custom homes.
2. Specifications to Look For:
- Airflow Capacity: 15,000 CFM ensures efficient air removal or circulation.
- Power Rating: Check the horsepower (HP) of the motor, typically ranging from 1.5 HP to 3 HP for this capacity.
- Blade Material: Aluminum, galvanized steel, or plastic, depending on durability and application.
- Fan Diameter: Usually 36 to 60 inches for 15,000 CFM models.
- Motor Type: Direct-drive or belt-driven motors; direct-drive models have fewer maintenance needs.
- Noise Level: Check decibel ratings if the fan will operate near people.
- Voltage: Commonly available in single-phase (110/220V) or three-phase (220/440V) power supply.
3. Installation Requirements:
- Mounting: Wall-mounted, roof-mounted, or freestanding configurations.
- Electrical Connection: Ensure compatibility with your building's electrical system.
- Ducting: If required, ensure proper sizing for efficient airflow.
4. Brands and Models:
Reputable manufacturers of industrial fans include:
- Greenheck
- Dayton
- J&D Manufacturing
- TPI Corporation
- ACME Fans
5. Considerations for Purchase:
- Energy Efficiency: Look for energy-efficient motors or variable frequency drives (VFD).
- Durability: Corrosion-resistant finishes for outdoor or humid environments.
- Safety Features: Overload protection, safety guards, and thermal cutoffs.
- Warranty and Maintenance: Check for service agreements or spare parts availability.