Dupes won't wash hands at Hand Sanitizer while wearing Oxygen Mask

Just to expand on this, I experience the same issue with Atmo Suits (this happened in my spaceship from the Latrine + Sanitizer combo). They won't use the sanitizer while on suit, but if you remove it, they will. I thought it wasn't an issue because it's pretty odd to use hand sanitizer if your body is covered in an astronaut suit (but then again it's also strange to use a latrine while in such a suit); but with the Oxygen Mask your hands are definitely exposed and should be washable.

Edited June 16, 2021 by Pentalis
Expanding on the idea

It's been a while since dupes stopped using wash basin  or sink while wearing a suit 
"Changes: Dupes can no longer sanitize a suit using a sink or wash basin." update 453222

I assume this also means they don't use sanitizer and all 4 current suits are affected: oxygen masks, atmo suits, lead suits, jet suits, probably because the "decontamination shower" was introduced