top of page
Protect your hearing before suffering a hearing loss!

Earmuffs are worn over the ears and function consistently.

They have a NRR of up to 30 dB, and may be worn with other ear plugs for even greater sound protection.

Custom Solid Earplugs

Custom ear plugs are made from an impression of an individual person's ear for an exact fit.

They function consistently and have a NRR of up to 31 dB.

Disposable Earplugs

Disposable ear plugs are made of foam or other soft material. Actual noise reduction varies greatly between people, depending on individual ear shape, determining how well the plug fits.

Hocks Noise Brakers®

Hocks Noise Brakers®, with an acoustic filter, do not block sound; they let it in at a reduced volume. Hear conversation while protecting your hearing.

Available as Standards (shown) or custom earplugs.

Common Activities
Showing Decibel (dB) Levels
and Typical Physical Responses


Activity                                               Approx. dB Level       Typical Response  


Threshold of hearing                                                      0         Not audible
Threshold of sound perce                                            
10         Just audible
Leaves rustling; very soft
; Living/dining/bedroom      30        Very quiet                        
Light car traffic; noisy office; normal conversation     60        Speech interference
Loud conversation; restaurant; vacuum                       70        Annoying, with elevated speech interference  
  Average factory                                                            85        Very annoying

             Permanent damage of auditory nerves usually commences at about 90 dB

Busy city street; motorcycle; lawn mower                  90       Can damage hearing after 8 hrs of exposure per day  Jet take off; train horn; jackhammer; diesel truck     100       Can damage hearing after 2 hrs of exposure per day

Squealing pigs; inboard motor; typical night club     110       Maximum vocal effort; 30 min of exposure per day

Amplified rock music (volume varies)                      110-130   30 - 3.75 minutes exposure per day


           Heavy destruction of auditory nerves and sharp pain are not uncommon

Car horn; propeller aircraft; air-raid siren                  120    7.5 minutes exposure
Military jet; shotgun; hydraulic press                         130    3.75 minutes exposure per day
Gun shot; jet engine taking off                                   140    Danger level
Rocket launching                                                        180   Danger

 At 150+ dB:  severe pain, immediate massive destruction of Auditory Nerves, and persistent ringing of the ears lasting for days is usually the result.  Ringing can become permanent.

     At this level of sound it won't take much, and you won't have to worry

about your hearing...  you won't have any!

What can be done?
The simplest solution is to use good hearing protection
before suffering a hearing loss.
bottom of page