Technical Specifications

Protec-Ear SA hearing protectors have been issued a certificate of approval by the Dept.of Labour no. OSI/1/84 according to the Occupational Health and Safety Act.

Protec-Ear SA hearing protectors are hand-made by qualified technicians with 20 years accumulated experience. State of the art techniques are used during production to ensure a high quality, hypoallergenic product.
In the field, impression taking and fitting is performed by qualified personnel, incorporating a fitting and seal test to ensure a durable, effective hearing protector.

Test results according to SABS 1452-1988
Test Report no. 7232.2001226.UA50 April 2002.
Sample tested: Full block acrylic CIC custom hearing protection device.

AttenuationTest

 

 

 

 

 

 

 

 

 

 

O – Protec-Ear SA hearing protector attenuation
X – SABS 1451-1988 minimum limits

 

Protec-Ear SA hearing protectors do not require calibrations, adjustment or special care after the initial fitting. They are low maintenance, easy to fit and comfortable to wear after initial instruction and carry a 1 year guarantee against manufacturing defects.

Protec-Ear SA hearing protectors can be fitted with different filters to provide less attenuation (sound damping) and higher speech audibility. Attenuation results are available – tests on the filters were done in Europe according to EN 13819-2 and EN 24869-1.

Filters are precision manufactured out of Stainless steel and the holes drilled by laser beams to ensure correct and constant diameters.

Many users report that the filtered hearing protectors provide more comfort due to less occlusion (blocked-up feeling) and enough attenuation in noisy situations.

 

Attenuation tests on LC20 Filters according to En24869-1 standards

Frequency

/Hz

Attenuation

/db

Standard deviation

/db

Mean Attenuation

/db

125

14.5

3.5

11.0

250

14.7

2.4

12.3

500

18.6

2.7

15.9

1000

25.9

3.1

22.8

2000

32.6

4.6

26.0

4000

31.0

2.8

28.2

8000

35.7

5.8

29.0

Other filters with different attenuation is also available. The filters carry the CE mark of approval.

 CE

 

 

Attenuation tests on LC35 Filters according to En24869-1 standards

Frequency

/Hz

Attenuation

/db

Standard deviation

/db

Mean Attenuation

/db

125

210.

3.2

17.8

250

21.4

2.7

18.7

500

26.4

2.9

23.5

1000

28.8

4.5

24.3

2000

33.5

4.8

28.7

4000

36.0

2.4

33.6

8000

37.9

5.4

32.5

Other filters with different attenuation is also available. The filters carry the CE mark of approval.

 CE