Hygienic properties of catalytic heaters.
D000388:Air / Q000032:analysis; D000397:Air Pollution; D002245:Carbon Dioxide / Q000032:analysis; D002248:Carbon Monoxide / Q000032:analysis; D002384:Catalysis; D005579:Fossil Fuels; D005740:Gases; D006361:Heating; D010100:Oxygen / Q000032:analysis; D013997:Time Factors; D014691:Ventilation
D005579:Fossil Fuels; D005740:Gases; D002245:Carbon Dioxide; D002248:Carbon Monoxide; D010100:Oxygen