Silenta ERGOMAX Passive Headband

£19.96 (Exc VAT)

The Silenta ERGOMAX Headband Headset is a Dielectric hearing protector, that can be used in high voltage environments. Its award-winning design is comfortable to use over a long period of time.



Silenta ERGOMAX Headband Headset, key features:



  • Dielectric hearing protector, can be used in high voltage environments
  • Prize-winning design
  • Comfortable to use over longer period of time
  • Attenuates also efficiently in low frequencies

Product details

  • Multiple colour variants
  • Slack-free 9-position telescopic adjustment
  • Cups ABS plastic
  • Weight, net 231 g, gross 310 g
  • Nato Stock Number 4240-58-000-0717


  • SNR 33 dB / NRR 26 dB. The detailed attenuation values are presented below in the table. They were obtained under laboratory conditions and are for comparison purposes only. The SNR of this product is 33dB (superior) and it is designed for extremely noisy environments, such as industries, engine rooms and air traffic. However, the user is responsible for the suitability of the hearing protector for a specific purpose.


  • We recommend to replace the cushions as necessary, at least every 6 months
  • The recommended maximum shelf life is 5 years from putting into service


ATTENUATION  H = 36 db  M = 30 db  L = 22 db  SNR = 33 db
 Frequency (Hz) 125 250 500 1000 2000 3150 4000 6300 8000
Mean attenuation (dB) 20.4 22.0 32.7 41.1 37.5 39.4 38.6 33.6 37.2
Std. Deviation 3.7 2.6 3.0 2.4 2.6 2.1 2.9 3.2 2.5
APV-value (84%) 16.7 19.4 29.7 38.7 34.9 37.3 35.7 30.4 34.7

Additional information


Grey, Black, Red


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