Hellberg Electronic Earmuff Hygiene Kits Size:Secure Electronic Reusable and washable with a

Reusable and washable with a damp cloth

Sound Level Conversion: 22 (AUS & NZ)

The lifespan of the earplugs depends on frequency of use but can go up to 100x reusable

Mack's Original Foam Ear Plugs are molded from state-of-the-art ultra soft foam

ergonomic design

Hellberg Electronic Earmuff Hygiene Kits Size:Secure Electronic Reusable and washable with aReplacement pads and foam for Hellberg Earmuffs Hygiene Kits are used to maintain proper earmuff performance Kits contain new ear cushions and foam liner inserts which can be quickly replaced in a few easy steps You should replace your hygiene kit every six months to maintain maximum protection