The effectiveness of your Cotral Lab custom ear plugs

An effective attenuation is based on four key pillars:

Device compliance

A customized hearing protector is a combination of a custom ear plug and an acoustic filter. The standard requires the certification of both together. Cotral Lab's tip and seven different filters are fully compliant with ANSI requirements.


The perfect quality of each ear mold

Ear mold quality control before manufacturing the best custom ear plugs

The first step in manufacturing your device is the mold. A high-quality mold is the key to having an exceptional custom ear plug.

This is why each Hearing Protection Specialist at Cotral Lab:

  • Follows a firm and specific protocol
  • Receives continuing training on the highest standards of the British Society of Audiology (BSA)

The manufacturing process of your custom ear plugs

The devices are manufactured using a state-of-the-art 3D process, so that each tip perfectly fits the ears of the intended recipient.

Comfort, fitting, and sealing are guaranteed.

Cotral Lab technician scanning the mold for each custom ear plug

The widest range of attenuation available on the market.

Qeos custom hearing protection devices with 7 different filters

With the Qeos custom hearing protector, you benefit from seven filters. 4 HFA (High Frequency Attenuation) with NRR from 16 to 23. And 3 UR (Uniform Response) with NRR from 8 to 20.

Three Uniform Response filters with NRR from 8 to 20

  • Original Sound filter (Qeos OS) reduces the noise level evenly across all frequencies
  • Recommended for everyone who has a need to communicate or hear undistorted sound while working
  • Also prescribed for those who require attenuation of the lower frequencies

Four High Frequency Attenuation filters with NRR from 16 to 23

  • High Frequency Attenuating filter (Qeos XT) reduces the noise level predominantly in the high frequencies
  • Recommended for those who require attenuation at the higher frequencies and for those exposed to very loud noise

ISO 9001 Certification

Since 2006, Cotral Lab's manufacturing process has been certified to the highest standards in the industry. The "Quality Control Check Point" alongside the course gives you the assurance that you will receive the best custom ear plugs with the highest level of protection.

ISO 9001 Certification - DEKRA