The utility model discloses a household micro-pressure
oxygen cabin air supply and exhaust path device which comprises a cabin body, an
oxygen generator, a compressor, a console and a
breathing mask, an air supply and exhaust
assembly is arranged in the cabin body and comprises an inspiration collecting
pipe, an expiration collecting
pipe, a jet
pipe and a one-way valve connector, and the inspiration collecting pipe is fixedly installed at the top of the inner wall of the cabin body; the expiration collecting pipe is fixedly installed at the bottom of the inner wall of the cabin body, a plurality of air holes are formed in one side of the inspiration collecting pipe and one side of the expiration collecting pipe, and the multiple one-way valve connector pieces are arranged. By means of the air supply and exhaust
system, air in the cabin is discharged through the jet pipe, so that the expiration air collecting pipe is kept in a micro-negative-pressure state,
carbon dioxide in the expiration air collecting pipe does not overflow into the cabin, the concentration of the
carbon dioxide in the cabin is controlled to the maximum extent, and the risk that the concentration of the
carbon dioxide is increased is avoided; the host capacity is controlled to the maximum extent under the condition of guaranteeing
oxygen cabin requirements, so that the host capacity is more economical and reasonable.