L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Pierrick Cohard

Fabien Durand

Rachid Makhlouche

Vincent Graziani

Jean-Michel Cazenave

Guillaume Delautre

Xavier Roussin-Bouchard

Christian Rolland

A respiratory protection hood having a sealed flexible shell including a pressurized oxygen vessel provided with a calibrated output opening leading into the inside space of the flexible shell and a device for trapping at least one portion of the carbon dioxide exhaled by the user that includes a cartridge for adsorbing carbon dioxide having a perforated tube arranged around a volume of carbon dioxide absorbing material. At least one portion of the perforated tube being arranged around the volume of absorbent material in direct communication with the inside space of the hood.

Respiratory protection hood

Full hood respirator comprising a fluidtight flexible bag intended to be slipped over the head of a user, the flexible bag being provided with a transparent window and comprising, in its lower part, a rigid base element of annular overall shape intended to be positioned around the neck of the user, the base element comprising a tubular oxygen reservoir of pressurized oxygen provided with a calibrated outlet orifice opening into the internal volume of the flexible bag, characterized in that the base element comprises at least two rigid parts connected by an articulation, the two parts being movable relative to one another between a furled first position that prevents a head from entering the hood through the base element and an unfurled position of use that allows a head to enter the hood through the base element.

Full hood respirator

Growing community of inventors

Les Abrets, France

Pierrick Cohard