Technicians reported refusing to clean portable O2 masks after use and for reuse due to a lack of proper materials and references.

Narrative

It has been brought to my attention from all day shift and some night shift AMTs working the terminal operation that Management having the AMTs reuse passenger oxygen masks back into service by following TASK. Also ref (subject Oxygen System Components Cleaning) helps show all required equipment and chemicals used to clean Oxygen Components in which this station is not ready with to sanitize Masks. As I and the AMTs read the TASK is more for cleaning portable oxygen system and components from dust and not intended to sanitize the used oxygen Masks. At briefing one supervisor (NAME) gave the TASK for reference to the AMTs to follow cleaning procedure. The other supervisor (NAME1) walked into the ready room at the terminal with a box full of used disposable oxygen masks and told the AMTs to clean masks for reuse. These AMTs told him they are not in the medical cleaning department and would not do as requested in a group. I was told so the Supervisor did the cleaning himself then had to look for bags to place the cleaned masks in.