An AVP 804 cabinet is equipped with a blower and a molecular filter (figure 8) designed to retain the vapours escaping from chemical bottles stored inside. The blower (extremely silent, only 49 dBA), takes the air of the room to the storage enclosure through a vent placed at the base. The induced air flow takes the chemical vapours to the molecular filter where they are safely eliminated (filtration according to Class 2 of the NFX 15-211). After filtration, the purified air returns into the room. The large transparent door allows for a permanent inventory of the available chemicals. The AVP 804 cabinets can be equipped with a partition panel to separate non compatible chemicals (AVPS 804). They can be doubled to store larger quantities of chemicals (up to 200 bottles of 1 liter for AVPD 804 and AVPSD 804).