Zone 3 industrial models are easily identifiable by their durable and
practical black coloured ear cup with clearly visible red insert and spacer.
Zone 3 offers an effective and comfortable solution for use in extreme
noise level environments, such as, using pneumatic tools, compressors,
working close to diesel or jet engines or concrete drilling applications
found in mining, oil & gas, energy, utilities, aviation, rail transportation
and general heavy industry.
Zone 3 offers the highest level of protection and can be trusted to
effectively attenuate at all frequencies, even low frequencies, which are particularly challenging to attenuate.