Emergency compressed oxygen filter type self-rescue device

The invention discloses an emergency compressed oxygen filter type self-rescue device. The emergency compressed oxygen filter type self-rescue device is characterized in that the filter type self-rescue device is of a dual-path gas supply structure of compressed oxygen supply and environment gas filtered supply, a high-pressure oxygen bottle provides a gas source, through pressure reduction, the gas source is guided into a buffer chamber, an air purification cavity filled with air purification padding is arranged, and is arranged in one side of the buffer chamber, a separation filter net carries out separation between the air purification cavity and the buffer cavity, environment gas entering the air purification cavity is subjected to air purification padding treatment and is jointly guided into the buffer chamber, dual-path mixed gas supply is achieved, and the oxygen supply time is effectively prolonged. 本发明公开了一种应急压缩氧过滤式自救装置，其特征是过滤式自救装置设置为由压缩氧供气和环境气体经过滤供气的双路供气结构；以高压氧气瓶提供气源，经减压导入缓冲室；设置填充有空气净化填料的空气净化腔，空气净化腔处