PORTABLE GAS MASK COMPACT-SIZED AND READY FOR USE WITHOUT SEPARATE TIGHTENING UNIT BY FORMING THE SAME USING ELASTOMERIC MATERIAL

摘要

Purpose: a portable gas mask is provided, it is small-sized, size and none individually tightens unit by forming mask, use a highly elastic material, it is used to increase portability and a wearer is enable easily and quickly to consume identical preparation, so that wearer can escape during emergency situations from a danger area, such as fire or poison gas outflow. Construction: portable gas mask includes: a head (10) made of a refractory material; One neck (12), be height it is flexible be contractile to be kept tightly around neck; One retina scanning panel (20) has for providing a transparent film of an observation viewpoint; For filtering and a filter (30) for removing toxic substances; One ventilation unit (40) is adapted to allow expiratory air from being that induced inside exhausts and inhibits external gas.