Flents Protechs, Рабочие беруши, 8 пар в футляре

• Noise Reduction Rating - 33 Decibels
• Foam Ear Plugs
• The Highest Independently Tested NRR

Tapered for an Easy, Snug Comfortable Seal.

Information required by EPA: The level of noise entering a person's ear, when a hearing protector is worn as directed, is closely approximated by the difference between the A-weighted environmental noise level and the NRR. 

Example: (1) The environmental noise level as measured at the ear is 92 dBA. (2) The NRR is 33 decibels (dB). (3) The level of noise entering the ear is approximately equal to [92 dB(A) - 33] 59 db.

The range of noise reduction ratings for existing hearing protectors is approximately 0 to 30 (higher numbers denote greater effectiveness).

Noise reduction rating: 33 Decibels (when used as directed)

1. With clean hands, slowly roll plug into a thin, crease-free cylinder.
2. While compressed, insert plug into ear canal. Fitting is easier if outer ear is pulled outward and upward during insertion.
3. With fingertips, hold plug in place until it begins to expand and block noise. The degree of noise reduction depends upon proper insertion.