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There are four ways to extract fumes from a building:
The fumes are extracted by natural fume and heat extraction devices. These devices are made up of fume discharges and fume extraction flaps.
The fumes are evacuated by ducts connected to an extraction fan.
This combined method is suited to buildings with several floors.
This method is used in places where ventilation directly to the exterior is not possible (basements, parking lots).
The fumes can be extracted by sweeping or creating negative pressure inside the building, or a combination of the two.
In large buildings, the volumes must be divided up into sections and the following measures must be taken:
These are the routes used by employees to evacuate the building and by the emergency services to gain access.
Fume extraction in these zones is natural or mechanical.
Fumes must be extracted from stairways to make it easier to evacuate and to enter the building.
Fumes are extracted naturally through openings at the top and the foot of the stairs. The controls are positioned at the foot of the stairs.
French labor law and APSAD rule R17 require an annual check of the fume extraction equipment, including a conclusive operating test by a certified organization.
Promat Sécurité can perform the regulatory checks of your equipment.
The following items must be checked: