The Elvex Uni-Fit Foam Ear Plugs (32 NRR, 37 SNR, 200 Pairs Box) use slow expansion polyurethane foam, which makes it easier for the novice to make a good insertion. The correctly inserted plug will allow the user to get the benefit of the attenuation. Now, with the slow expansion foam, the user can have a better chance of getting a better fit. The benefit of this ear plug is that it has a noise reduction rating of 32 dB and it is tested to ANSI S3.19-1974 at an independent and certified laboratory.
The Uni-Fit is also CE certified and tested to EN-352. The single number rating (SNR) is 37 dB. These Elvex ear plugs are easy to insert correctly due to their tapered shape and slow expansion rate. The smooth surface and low pressure foam provide the most comfortable fitting foam ear plugs on the market. These ear plugs are one size that fits all and the dimensions allow virtually every ear canal to be correctly fitted. There is bilingual packaging offering languages like English, Spanish and French, which assures that proper usage information is available where the ear plugs are dispensed. These ear plugs are standard, are sold in 200 pairs in a box and there are 5 boxes in a case.