I can’t tell. But you should be cleaning your humidifier often. Like every week at least. 😬 I hope someone else can answer your actual question though!
Looks more like scum or calcium build up. Give it a good clean it should be fine
I can’t tell. But you should be cleaning your humidifier often. Like every week at least. 😬 I hope someone else can answer your actual question though!
No, but if you do t clean it then you’ll definitely get mold
Looks like mineral deposits to me.