3M™ PELTOR™ Hygiene Kit for Earmuffs are our quick and easy solution to maintain your 3M™ PELTOR™ Earmuffs with replacement cushions and liners.Extend the working life of your hearing protection with 3M™ PELTOR™ Hygiene Kits. 3M recommends replacing our earmuff cushions and foam inserts every 6 months or sooner if they are damaged. 3M™ PELTOR™ Hygiene K