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 department protocol.

Gas-powered fire blowers are the highest-output option and the traditional standard for structural firefighting. They operate independently of shore power, making them the preferred choice for large commercial fires, rural deployments, and incidents where runtimes are unpredictable.

Electric and battery-powered positive pressure fans have become increasingly common as departments prioritize reduced emissions during overhaul operations and work in occupancies where gas exhaust is a concern. Battery PPV fans in particular have seen rapid adoption for residential fires and training environments.

When selecting a smoke ventilation fan, consider CFM output relative to structure volume, blade diameter, and whether the unit needs to mount to apparatus or operate as a portable ground unit.

Shop Fire Safety USA's Fan and Blower Lineup

Whether you're replacing an aging smoke exhaust fan, upgrading to an adjustable-speed system, or adding a battery-powered PPV fan to your apparatus, Fire Safety USA offers quality options at competitive pricing. Browse the full selection online or reach our team by phone, fax, or through your regional sales rep.