Respirateur portatif V3

thingiverse

Individual portable aerator with filter, adaptable to hood (see pattern in version 2) and semi-waterproof suit. (This is not medical equipment). Modifications and improvements since version 2: - Straps fixing, more solid and simplified. - Replacement of the grid by a cover (air intake in baffle), to prevent the filter from being wet by rain, postillions, by sprayed disinfectant... - Return to a square shape, less aesthetic, but makes the manufacture of the filter and its installation easier, faster, and more waterproof. - Fixing by clips replaces the 3 front screws (less additional parts required). Necessary material: - 4 steel bolts, 4 to 5 cm long and 4 mm in diameter (+ 4 bolts adapted). The head of the bolts should preferably be flat. - Glue suitable for 3D printing plastic (for PLA: neoprene contact glue or cianoacrylate or epoxy contact glue or hot glue or polyvinyl glue with quick setting). - A computer fan, 8 cm by 8 cm and 2.6 cm thick or less. A 12 V battery suitable for the fan (check the fan amperage).