RESPIRATOR Russian patent published in 1997 - IPC

FIELD: medical engineering. SUBSTANCE: device has mask made of filtering material and having two trapezoid side walls attached to each other along lateral sides and lesser base by means of seams. Obturator is bent inside the mask and composed of parts. The obturator is arranged along the greater base of the trapezes. Adapter is mounted on the obturator. Squeezing plate is mounted on the adapter. To fix the respirator on the head, flexible braid is attached to side walls of the mask. The mask and obturator are removable. The adapter, squeezing plate, fastening members of braid tension regulator for fixing the respirator on the head, clamps are reusable members. EFFECT: reliable respiratory organs protection against harmful influence of chemical substances. 8 dwg