CPC Subgroup Additional Only
A61L 2209/20 Method-related aspects
Full Title
Aspects relating to disinfection, sterilisation or deodorisation of air > Method-related aspects
2 direct subcodes
Child Classifications
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- A61L 2209/21 Use of chemical compounds for treating air or the like
- A61L 2209/22 Treatment by sorption, e.g. absorption, adsorption, chemisorption, scrubbing, wet cleaning