band aid instead of tape

I used a regular band aid across my mouth and it stayed on fine. I'm wondering why no one does this. Is there something dangerous about using a band aid across your mouth instead of tape??
I also used a Ruby adjustable chinstrap for the first time. My mask is the Activa LT. I bet most of my face was covered!!

Glad it worked for you. Bandaids don't work for me since the center part where there's no adhesive lets my lips open. If a bandaid works for you, that's great. No problem that I know of.