19-1974 standards for noise reduction

Extremely comfortable AlpineThermoShape™ material

Each Hygiene kit contains 2 x foam inserts and 2 x cup cushions which can be replaced in a few easy steps

We can put these sounds in a line from low to high based on their frequency

The intense blue color scheme is used for better recognition in production

Macks Maximum Protection Foam Earplugs (NRR 33 | Tub of 100 pairs) 04CF02 19-1974 standards for noise reductionThis Mack Daddy of earplugs carries the highest noise reduction rating available. Finally, an earplug that provides 33 decibels of noise reduction while also providing a comfortable fit for your ear canals. Macks Maximum Protection Soft Foam Ear Plugs are great for those who prefer a fuller sized earplug, without the large, bulky size of some competitors' earplugs. Molded with super soft, low pressure, slow release and tapered foam for easy fitting