Freon affects infrared gas monitors.
Yamsashita
M
M
D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D005617:Chlorofluorocarbons, Methane; D005740:Gases / Q000032:analysis*; D007259:Infrared Rays
D005617:Chlorofluorocarbons, Methane; D005740:Gases