A possible answer.

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Note added at 29 mins (2015-07-06 10:49:27 GMT)
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Alternately, the equipment may be subjected to high level disinfection with liquid chemicals. Equipment for respiratory or oxygen therapy should be sterilized or
http://campus.bethlehem.edu/faculty/nursing/events/Neonatal2...
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Disinfection With Liquid Chemicals - Classification of medical devices based on degree of risk, disinfectant selection, toxicity, and material
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&c...
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This type of disinfection, with liquid chemicals, has been the preferred method of cleaning endoscopes because it doesn't require high
http://www.livescience.com/48184-contaminated-medical-equipm...
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CHEMICAL MONITORING AND EMPLOYEE SAFETY Unlike procedures routinely used to achieve sterilization, disinfection with liquid chemicals offers no ready
https://books.google.com/books?id=HDzcboqJR9kC&pg=PA27&lpg=P...
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