Fans & Blowers

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PPV Fans & Fire Blowers Controlling ventilation is one of the most tactically critical decisions on the fireground. Whether you're clearing smoke from a residential structure or exhausting toxic gases from a confined industrial space, the right PPV fan or fire blower determines how quickly your crew can operate safely. Fire Safety USA stocks gas-powered, electric, and battery-powered positive pressure ventilation fans from industry-leading brands including Super Vac and Tempest. What Is a Positive Pressure Ventilation Fan? A positive pressure ventilation (PPV) fan is a firefighting blower designed to increase interior air pressure inside a structure, forcing smoke, heat, and toxic gases out through a designated exhaust opening. Unlike smoke exhaust fans that pull air out, PPV fans push clean outside air in — creating a controlled flow path that improves visibility and lowers interior temperatures. Key operating specs and use cases: Output ranges from 7,000 to 24,000 CFM depending on blade diameter and motor power; larger units are required for commercial structures, high-rises, and below-grade locations Gas-powered PPV fans deliver maximum CFM output and are the standard for large-structure operations and remote deployments without shore power Battery-powered and electric PPV fans offer zero-emission operation, quieter performance, and growing adoption in residential and confined-space applications Departments typically place the fan at the entry point, cone-covering the opening, with a designated exhaust vent or window on the opposite side Applications include structure fires, post-fire overhaul, hazmat atmospheres, confined space rescue, aircraft and maritime incidents, and wildland fire camps Negative pressure fans and smoke ejectors remain in use for single-opening scenarios and post-fire overhaul — Fire Safety USA carries both configurations. Gas-Powered, Electric, and Battery PPV Fan Options The right power source depends on your deployment environment and