The Sellstrom HP431 ear muff, MPN S23406 (SKU SUW-S23406), is intended for workplaces with very high noise levels. A lightweight design pairs soft cup pads with an EVA head band to support comfort over extended wear. Stainless steel wire arms incorporate swivel forks for a strong, durable construction, and easy adjustment allows quick positioning. The ear muff is independently tested and certified to NRR 31 dB under ANSI S3.19 and carries a CSA Class A classification.

• Noise reduction rating: NRR 31 dB.
• Independent testing and certification: ANSI S3.19; CSA Class A.
• Soft cup pads and a soft EVA head band for wearer comfort.
• Stainless steel wire swivel-fork arms for durability.
• Lightweight design with easy positioning adjustment.