A Halloween mask can be bad for your health.
These masks are a breeding group for dirt and bacteria. While hanging in stores kids and adults come in and try the masks on all day - and it makes the nose and mouth holes on the mask covered in different strains of bacteria.
By the time you purchase the mask and take it home it’s already filled with fungi and mold.
Does that mean you can never get a mask?
No - just make sure to soak it in rubbing alcohol after purchase.