Positive Pressure Ventilation (PPV)

PPVWhat Is It?

Positive pressure ventilation (PPV) is a ventilation systems that stop the spread of smoke through buildings to increase the likelihood of safe evacuations in the event of a fire.

The Smoke Control Association (SCA) regulations dictate that lobby ventilation is required either by natural ventilation or mechanical smoke control systems and how to meet these standards.

How It Works

The system works by driving air into a lobby or stairwell, moving high-pressure air into low-pressure areas, and forcing smoke out of the communal areas, meaning people can evacuate safely.

The unit is operated by a smoke detector and will continue to run until it is reset.


The Result

This reduces the risks during a fire as people will be able to vacate the building safely.

Contact us to discover the best PPV unit for your building.

What a Unit Contains

The PPV unit contains duty and standby fans, duty and standby fire dampers, a smoke detector interface, a phase automatic electrical change-over switch, controls, a status LED and a volt-free contact for 3rd party monitoring.


The primary benefits of the PPV unit are evacuating smoke in the event of a fire, meeting safety regulations, and ensuring compliance. However, other benefits include the unit takes up minimal space, is relatively cheap to buy and install, causes little disruption to your building, and the units can be used for buildings or car parks.

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Contact Information

Phone: 0845 604 5653
Lines Open 8:30am - 5.00pm Mon - Fri,
Closed Weekends & Bank Holidays

Fax: 0844 809 9323

E-mail: customerservices@besafedirect.com

Trading Address:
Be Safe Direct Ltd
154 London Road

Be Safe Direct Ltd Registered Office:
152-154 London Road

Company Number: 07234883

Need more information?

For more information on the FireSmart system, call our expert team on 0845 604 5653 or email customerservices@besafedirect.com

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