UCi SNR 31 Optime II

The UCi SNR 31 Optime II offer adjustable protection for more demanding noise levels. The sealing rings of the Optime II earmuffs contain liquid and foam, providing an optimum seal. The neckband version of the Optime II can be used with other protective equipment, such as helmets, and the folding version is easily stores in a toolbox or pocket.

The Optime II is available in 3 versions:

• Standard headband earmuffs (available as single or pack of 20)
• Neckband earmuffs (available as single or pack of 10)
• Folding earmuffs (available as single or pack of 10)

A Basic Guide to Hearing Protection:

Hearing protection should ideally limit exposure to between 70 - 80 dB at the ear, and not exceed 87bB. However, it is also important to not over protect as the wearer may not be able to hear other sounds such as fire alarms or vehicles. The wearer can also feel isolated resulting in reluctance to wear the protection when necessary.

dB (decibel) is the unit used to measure sounds intensity. Sounds intensity roughly doubles for every 3dB increase.

SNR is the ‘Simplified Noise Level Reduction’ or ‘Single Number Rating’, which is the simplest way of getting a general indication for the level of protection provided.

The most accurate way to decide whether hearing protection is needed is to arrange a specialist survey from an independent professional.

Simple Equation:

Noise Level                      100dB

Hearing Protection SNR    - 30dB               (This calculation is only a rough guide and does not take into account different frequencies so may no be a suitable measurement.)

Noise Reaching Ear        70dB