3M™ PELTOR™ Hygiene Kit for Earmuffs HYX4/37283(AAD), Hearing Conservation, 10 Kits/Case

3M™ PELTOR™ Earmuffs X4/ X5 Probed Test Cushions easily snap into the 3M™ PELTOR™ X-Series X4 and X5 Earmuffs (sold separately) to allow for fit testing with the 3M™ E-A-Rfit™  Dual-Ear Validation System. The complete system issues a pass or fail rating based on the employee's personal attenuation rating (PAR) when wearing 3M PELTOR X-Series X4 and X5 Earmuffs