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The MSA left/RIGHT™ Ear Muffs have dedicated right and left ear cups that are designed to fit ears of all shapes and sizes which offers increased comfort and protection. The headband's breakthrough design simulates the head's curves to provide a comfortable and stable fit, balancing muffs with ear cup angle.

Part Number

left/RIGHT, HIGH, Yellow, Earmuff (NRR 28)

Length: 6.181 IN (157.000 MM)
Width: 5.079 IN (129.000 MM)
Height: 7.283 IN (185.000 MM)
Weight: 0.705 LB (0.320 KG)

left/RIGHT, MEDIUM, Blue, headband model (NRR 25)

Length: 7.362 IN (187.000 MM)
Width: 4.449 IN (113.000 MM)
Height: 5.551 IN (141.000 MM)
Weight: 0.529 LB (0.240 KG)
Color: BLUE

left/RIGHT, LOW, White, Earmuff (NRR 21)

Length: 7.520 IN (191.000 MM)
Width: 4.370 IN (111.000 MM)
Height: 5.512 IN (140.000 MM)
Weight: 0.441 LB (0.200 KG)
Color: WHITE
  • Precise fit provides maximum loud noise protection using minimal cup size
  • Headband adjusts up and down to provide custom fit for different head sizes
  • Available in low, medium, and high attenuation
Markets: Construction, Mining, Oil & Gas
Applications: Confined Space, Welding

Approvals subject to change without notice and may differ based on configuration, part number and/or country.
Contact Customer Service or check approval label on product for specific approval information.

MSA left/RIGHT Muffs are third-party tested in accordance with ANSI S3.19-1974 and CSA Class A.

USA Approvals

EN Approvals