MSA designed their ear muff's specifically for very high noise levels, this powerful muff model is ideal for airfields, power plants and other areas with intense noise. The HPE cap mount ear muff model provides the highest rated protection available for low frequency enviroments. Mounts in hard hat accessory slots quick and easy . Has super soft ear cushions guarantee all-day comfort while ensuring fulltime protection .

Noise Reduction Rating ( NRR ) is a third party certified in accordance with ANSI S3.19-1974, EN352 and meets CSA Class A

HPE Cap Mount Ear Muff ( NRR-27dB )

Note: This MSA model of cap mount ear muff NRR Rating as stated , are when they are used with MSA V-Guard helmets only. If used with other helmets models or brands NRR rating may vary.