Noisebreakers are made from a medical-grade soft silicone rubber and are said to be comfortable and cost effective. They have a through channel with a filter allowing speech frequency sounds through more than the damaging middle-high frequencies. The wearer is therefore protected but not isolated and warning signals may be heard.

The custom moulded earplugs are made from a soft rubber, so provide a good fit to each ear. The company says there should not be any problems of poor fitting or discomfort and that they tend to give laboratory attenuation in the ‘real world.’

Custom made earplugs such as Noisebreakers can be comfortably worn under helmets or breathing apparatus.

With a long life expectancy and no moving parts to wear out, such products are very cost effective over time.