This floor vent (Ø 100 mm) is for installation into the vehicle floor and has an ingenious dual function. As it can be optionally used as a ventilation and extraction system in combination with a floor or side vent. As a result, permanent fresh air circulation flow is guaranteed, which fulfils the requirements of gas transport, in accordance with the DGUV. (German Statutory Accident Insurance Association).
For ventilation, the roof vent in the vehicle generates excess pressure, which pushes the heavy gases (e.g. propane) outwards through the floor vent, or as the case may be, the side vent.
For air extraction, however, an under pressure is drawn in of fresh air, by means of, the floor, or rather, side vent and light gases (e.g.acetylene) are pushed upwards and flushed out from above.
It is very easy to install into the vehicle, by means of, the round construction form of the floor vent and its integrated screw thread.
(Pictures are similar, decorative material not included)