3M™ Peltor™ Ear Muffs M-985 Weldskill This is based on a

This is based on a unique sensor concept that measures the brightness of the welding arc and automatically adjusts the ADF to maintain the correct shade value

Used on applications requiring normal heat

4 respiratory standard and US OSHA fit testing requirements for respirators

For width compensation when using grinding rollers

it blocks it

3M™ Peltor™ Ear Muffs M-985 Weldskill This is based on a3M Peltor Ear Muff Assembly M 985 The 3M PELTOR Earmuff Assembly M 985 allows 3M Versaflo M 100 and 3M Versaflo M 300 Series users to use headgear mounted earmuffs. The assembly includes one pair of 3M PELTOR Earmuffs H31 and hardware for mounting on the 3M Versaflo Headgear M 100 and 3M Versaflo Headgear M 300 Series. Noise Reduction Rating (NRR)*: 23 dB. CSA Class A Easy to adjust for convenient wear for use with M 100, M 200 and M 300 and 9100MP