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Magazine Article
Ear plugs: a field guide
2005
Overview
There are four categories of ear plugs: 1. single use, which are worn once and then replaced when workers reenter a noise area; 2. multiple use, which can be used repeatedly and cleaned with soap and water; 3. banded ear plugs, which essentially are two foam ear plugs held together by a plastic or metal band; and 4. detectable earplugs, which can be used in environments where you need to be able to screen for foreign substances in the finished product. Single-use, or disposable, ear plugs are the most common type used today. They are popular because of their low cost, ease of use, and high level of comfort. A recent advance in single-use ear plugs is the use of thermoplastic elastomer foam. Multiple-use ear plugs are typically molded with a semi-rigid stem and pliable flanges, so they don't require rolling prior to insertion. They insert easily and can be quite comfortable for extended periods.
Publisher
1105 Media, Inc
