Berkshire masks are designed to protect your cleanroom or controlled environment from contamination.

• Filter Media: Meltblown polypropylene provides superior particle and bacterial filtration efficiency
• Outer layer: Blue polypropylene spunbond identifies the outside of the mask
• Inner layer: White polypropylene spunbond is smooth and non-irritating
• Nosepiece: Fully enclosed vinyl covered steel is adjustable to reduce 'blow by'
• Earloops: Knitted nylon spandex are soft and comfortable for long wear
• Ultrasonic bonding reduces contamination and outgassing

People are a significant source of contamination in any critical manufacturing process. Berkshire masks are designed to protect your cleanroom or controlled environment from human contamination.