Final answer:
The maximum amount that can be trimmed from the MBU-20 mask face piece for comfort depends on the individual's head shape and size. Follow manufacturer's instructions and consult a professional for a proper fit. It is important to follow the manufacturer's instructions and consult a professional for proper fitting.
Step-by-step explanation:
The maximum amount that can be trimmed from the MBU-20 mask face piece for comfort varies depending on the individual's head shape and size. The purpose of trimming the mask is to achieve a snug fit without compromising its effectiveness. It is important to follow the manufacturer's instructions and consult a professional for proper fitting.
maximum amount that can be trimmed from the MBU-20 mask face piece for comfort depends on the individual's head shape and size. Follow manufacturer's instructions and consult a professional for a proper fit. It is important to follow the manufacturer's instructions and consult a professional for proper fitting.