Similar to the S-655, the 3M S-657 Hood uses a double shroud design for its respiratory seal; wearers can select on their seal design based on personal preference. The wearer should tuck the inner shroud into a shirt or protective coverall, which allows excess air to be channelled over the body for additional comfort.
The 3M S-657 Hood offers head, face, neck and shoulder coverage as well as providing eye and face protection to EN166 – liquid splash and low energy impact (grade F) the same classification for impact resistance as safety spectacles! Manufactured using a general purpose, fabric, the S-657 is a cost effective, practical powered air solution.
When used in conjunction with 3M Powered and Supplied Air Systems the S-657 offers an assigned protection factor (APF•) of:
• Jupiter APF= 40
• Dustmaster APF= 10
• TR-300 APF = 40
• V-500 APF= 40
Assigned Protection Factor (APF) as detailed in HSE HSG53.
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