Same here.
I have a zero tolerance policy (backed up by Trust policy) of collecting or accepting any device that isn't visibly clean, labelled and correctly reported. I think I'm pretty much on my own regarding this approach compared to other Techs but hey guess what? it works. My customers know it will remain uncollected therefore they follow policy and do what is required and we all get on fine with no animosity or confrontation.
Of course there will always be cases where it is necessary to do some cleaning and I use PDI Sani-cloth.
I did report an issue to MHRA ;last year regarding the claimed used of the wipes mentioned in the OP softening the insulation on an ECG trunk cable block, possibly combined with incubator heat. Nothing came of it.