HEARING PROTECTION
Protocor provides a range of quality hearing protection devices made locally for us by a qualified acoustician – from our entry level high quality resin ear protectors (EAR PRO) to our more advanced adjustable custom made hearing protectors.
EAR PRO HEARING PROTECTION
Our EAR PRO hearing protectors are on sale at R140.00 (EX VAT) and are made to last. The silicon attachment is replaceable at a nominal cost of R15.00 (EX VAT) a pair. The hearing protectors should last indefinitely if they are properly cared for. Contact us for a sample. Currently the Mondi Shanduka Mill in Merebank is trialling a number of pairs.
Below is the EAR PRO hearing protection tests that were done:
Hearing Protection Test:
TEST ONE
Objective:
To demonstrate the reduction of hearing based on a test individual with normal hearing (pre-test figure 1) versus the same test individual fitted with EAR-PRO EAR PROTECTION hearing protection.
Test conditions:
Hearing Tests conducted with “AUDIOMETER” calibrated. Test individual was placed in a soundproof booth
Hearing Test Conducted without EarPro Ear Protection Fitted.
RESULTS.
Test Individual hearing results showed ZERO hearing loss on either ear. The individual would be classified as “of normal hearing”.
TEST TWO
Objective:
To demonstrate the reduction of hearing based on a test individual with normal hearing (post fitment of hearing protection test figure 2) versus the same test individual fitted with EAR-PRO EAR PROTECTION hearing protection.
Test conditions:
Hearing Tests conducted with “AUDIOMETER” calibrated. Test individual was fitted with EAR-PRO ear protection and placed in sound proof booth.
Hearing Test Conducted with EarPro Ear Protection Fitted
| Comparative Results: Left Ear | |||
| No Ear Protection | With Ear Protection | Difference | |
| 250Hz | 5dB | 40dB | -35dB |
| 500Hz | 0dB | 45dB | -45dB |
| 1000Hz | 10dB | 45dB | -35dB |
| 2000Hz | 5dB | 45dB | -40dB |
| 3000Hz | 0dB | 55dB | -55dB |
| 4000Hz | 0dB | 55dB | -55dB |
| 6000Hz | 0dB | 55dB | -55dB |
| AVERAGE DIFFERENCE | 43dB | ||
| Comparative Results: Right Ear | |||
| No Ear Protection | With Ear Protection | Difference | |
| 250Hz | 15dB | 50dB | -35dB |
| 500Hz | 15dB | 60dB | -45dB |
| 1000Hz | 10dB | 50dB | -40dB |
| 2000Hz | 5dB | 50dB | -45dB |
| 3000Hz | 0dB | 50dB | -50dB |
| 4000Hz | 10dB | 60dB | -50dB |
| 6000Hz | 15dB | 60dB | -50dB |
| AVERAGE DIFFERENCE | 42dB | ||
Summary:
The results obtained show a significant reduction in hearing with the hearing protection fitted.
Certified Product used in manufacture:
Acrylic Powder Royal HXL, ISO 1567 Type 1, Class 1, CE 0197
Should you have any queries please do not hesitate to contact: Conrad Geldenhuys on 0823210885.