Airgas - 3MRH505B - 3M™ Peltor™ Black Behind-The-Neck Hearing

Airgas - 3MRX5A - 3M™ Peltor™ Black Over-The-Head Hearing Protection

Optime III is a super-muff, and has been developed for use in extremely noisy environments. The protection is based on a technology with a double casing that minimises resonance in the holder casing. This results in maximum high-frequency muffling, while at the same time its still easy to understand speech and signals. An acoustic connection between the inner volume and the volume between the casings in its turn provides maximum low-frequency muffling.

Peltor Optime 3 Ear Defenders, Neckband Behind Head, Black

Airgas - 3MR393-1100 - 3M™ E-A-Rfit™ Dual-Ear Validation System

Airgas - 3MRHY68 - 3M™ Peltor™ Black Protective Communications

Airgas - 3MRFL6H-03 - 3M™ Peltor™ Black Protective Communications

3M PELTOR, Behind-the-Neck Earmuff, 21 dB NRR, Ear Muffs - 4T018

3M Archives - Earshot Communications

Airgas - 3MRHY80 - 3M™ Peltor™ Black Protective Communications

Airgas - 3MR321-2101 - 3M™ E-A-R Caps™ Yellow Under Chin Hearing