OXYGEN CONCENTRATION DEVICE

摘要

Provided is an oxygen concentration device which makes it possible to reduce the pressure loss when source air is sucked in, correspondingly increase the suction amount of the source air, and suppress noise without greatly changing the basic structure of a compressor. Specifically provided is an oxygen concentration device comprising: a compressor (10) which has a plurality of suction ports (11P, 12P) for sucking in source air and generates compressed air by compressing the sucked source air; a pipe (37) through which the compressed air is fed; a silencer (38) which has a suction-side end (38A) that connects with the pipe (37) in order to suck in the source air and a discharge-side end (38B) for discharging the source air, and a plurality of connection pipes (40, 41) which directly connect the discharge-side end of the silencer and the respective suction ports of the compressor.