A mixed expired gas sampler.
D002245:Carbon Dioxide / Q000032:analysis; D002248:Carbon Monoxide / Q000032:analysis; D005740:Gases / Q000032:analysis*; D009584:Nitrogen / Q000032:analysis; D010100:Oxygen / Q000032:analysis
D005740:Gases; D002245:Carbon Dioxide; D002248:Carbon Monoxide; D009584:Nitrogen; D010100:Oxygen