No hearing protection suits every environment, so you should choose hearing protection for the actual noise environment you work in. That way you will be sure of the right attenuation for your particular situation. You must also take into account the length of time you are exposed to the noise. If you don’t wear earmuffs the whole time, you may sustain irreparable damage to your hearing. Hellberg’s hearing protection is available in three versions.
 

 

 Our HML method will help you determine which of these earmuffs best suits your working environment.
 

Ear cups can be turned to airing and rest position. Ready for use with Hellberg's quick-fit visors. The hearing protection is also available with headband.
     
 
Hellberg 8 Art.No. 21008. Weight 180 gr.
Freq. Hz
63
125
250
500
1k
2k
4k
 8k
H
M
L
 SNR
Mean value
13,4
12,1
16,1
27,5
32,0
34,5
30,7
 36,5
30
24
16
26
1 std. deviation
2,5
2,9
2,6
3,1
3,4
4,2
3,0
 1,5
APV 10,9 9,2 13,5 24,4 28,6 30,3 27,7 35,0
Hellberg 10 Art.No. 21010. Weight 190 gr.
Freq. Hz
63
125
250
500
1k
2k
4k
 8k
H
M
L
 SNR
Mean value
13,4
13,6
19,0
29,5
33,2
36,3
36,4
 39,6
33
27
18
29
1 std. deviation
4,3
2,1
1,9
3,3
2,4
3,8
3,5
 3,1
APV 9,1 11,5 17,1 26,2 30,8 32,5 32,9 36,5
Hellberg 12 Art.No. 21012. Weight 230 gr.
Freq. Hz
63
125
250
500
1k
2k
4k
 8k
H
M
L
 SNR
Mean value
14,3
16,0
25,5
34,0
37,0
37,1
35,4
 39,0
34
30
21
32
1 std. deviation
3,6
2,9
2,6
2,8
2,6
2,9
3,1
 4,2
APV 10,7 13,1 22,9 31,2 34,4 34,2 32,3 34,8
Tested to prEN 352-3
 
Hellberg Safety AB, Box 3002, S-443 03 Stenkullen, Sweden. Tel. +46 302 244 50. E-mail: info@hellbergsafety.se www.hellbergsafety.com