!#8# Ear Defenders - filtered vs. unfiltered | !8: Low Price Peltor Optime 105

!±8± Ear Defenders - filtered vs. unfiltered

Before the purchase is important to note the purpose of obtaining a pair, and therefore superior to the options available. One of the considerations is whether to get a couple filtered or unfiltered and that will make the difference.

Filtered Ear Protection

This type of hearing protection, and allows lower-decibel sounds essential to hear from them in the ears, like those of normal speech and environmental sounds, such as the phone rings. At the same time, blockhigher the decibels of noise, which are harmful to the ear, as sounds of power tools, loud ambient noise, etc.

NRR / SNR values - What are they?

Filtered pairs also differ in decibel reduction is sufficient to fit the noise suppression of the individual request. The degree of noise suppression is demonstrated by its use of single number rating (SNR) of the Assessment of the British or noise reduction (NRR) of the United States. These evaluations are an approximation of how many decibels theear protection the noise is filtered through to cancel. For example, using a lawn mower, you are exposed to noise of 100 decibels, higher than the acceptable level of 80 decibels. The use of ear protection during the execution of the task, such as the Peltor Optime 105 H10A with an SNR / NRC value of 29 decibels the noise exposure for the user to reduce to about 71 decibels, which is within the acceptable range.

Besides SNR / NRC, some manufacturers also details such as H = 34, M = 31, L =Adjacent to the SNR / 24 NRC values. These values HML refers to the values of the noise reduction hearing protection for high frequency sounds, low and medium, resulting from the SNR / NRR values that distinguishes calculated differently. This information is useful for people who have certain frequencies may occur more often than others.

Not filtered hearing protection

On the negative side, the pairs are not filtered does not distinguish between low and high decibels to differentiate and stop or reduce allDecibels of sound. This can be useful for artists and music lovers who do not want to have a sound environment and want to concentrate on the sound of their interest. However, it should be noted that important sounds are also filtered.

In summary we can say, is the difference between filtered and unfiltered to the degree the amount of sound that you want to block. Hearing protection is of paramount importance in the realization of noise and wear hearing protection activities is agreat way to avoid any injury of the inner ear.