Mechanical Monday: Positive pressure fan

Mechanical Monday offers you a quick behind-the-scenes look into your fire department. In this episode, Captain Collins gives a brief introduction to the positive pressure fan.
These mechanical devices can be strategically deployed to help control the atmosphere of a structure and coordinate the removal of things like smoke, heat, hazardous gases (e.g., carbon monoxide), etc. from a home or building. Fans are just one of many pieces of equipment commonly used by firefighters.
Some fan details:
• Size: 24”x24”x10”
• Weight: 59 pounds.
• Max air volume: 10,200 cubic feet per minute (CFM). For perspective, a $30 pedestal fan - usually found in a home - typically provides between 1,700 to 1,900 CFM.
• Power: Battery or AC.