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Ear protection must be worn where the noise level is above 85 decibels (dB). The problem can be getting the user to be comfortable wearing the protection but also to wear it properly. Not all ears canals are created equal, the same goes for ear protection products. We can aid in finding a solution that everyone will listen to.

It's all about choice

Selecting the right protection for your workers means more than choosing the earplug with the highest NRR. A better way to ensure that hearing protection is used consistently and properly is to select earplugs by Wintex. That means considering all the features that make one earplug work and fit differently than another: material, shape, size and NRR. Howard Leight makes it easy to compare products and ensure that all your workers receive the right fit and protection.

Packaging, dispenser and storage options

Whether you’re outfitting employees by the handful or the hundreds, we offer convenient and economical options that fit the needs of your workplace. What are the choices? Recyclable paper packages, individual polybags, reusable cases and bulk dispensers that eliminate packaging completely, just to name a few.

Cords for added convenience

In many environments, workers need to remove their earplugs during the course of a day’s work. We offer a wide selection of products with cords that make removing and refitting earplugs more convenient and reduce lost plugs.

Single-Use should not mean single choice. Wintex offers a comprehensive choice of Single-Use Earplugs that include the comfort features your employees deserve, plus the highest attenuation available. An economical and convenient choice for work situations that demand a high degree of comfort, frequent changes or where hygiene presents a problem for reuse.

Multiple-Use Earplugs last for weeks, reduce waste and save money. Simply clean with soap and water. Ideal for environments where workers can retain and store earplugs for reuse.

We offer a variety of performance features, including a patented band design that prevents earpads from touching dirty or contaminated surfaces when set down. Great for managers or for use in environments with intermittent sound hazards.

Save time, space and waste with earplug dispensers. For big and small operations, dispensers offer an economical, hygienic and user-friendly source for hearing protection.

How can I protect my hearing at work?

The surest method of preventing occupational deafness is to reduce noise at the source by engineering methods. However, in certain workplace conditions, there is very little or nothing one can do to reduce noise at the source. In such workplaces, workers wear hearing protectors to reduce the amount of noise reaching the ears.

What are some things I should know about selecting hearing protection devices?

People should wear a hearing protector if the noise or sound level at the workplace exceeds 85 decibels (A-weighted) or dB(A). Hearing protectors reduce the noise exposure level and the risk of hearing loss.

If hearing protection is required, then a complete hearing conservation program should be instituted. A hearing conservation program includes noise assessment, hearing protector selection, employee training and education, audiometric testing, maintenance, inspection, record keeping, and program evaluation.

The effectiveness of hearing protection is reduced greatly if the hearing protectors do not fit properly or if they are worn only part time during periods of noise exposure. To maintain their effectiveness, they should not be modified. Remember, radio headsets are not substitutes for hearing protectors and should not be worn where hearing protectors are required to protect against exposure to noise.

Select hearing protection that is:

  • Correct for the job. Refer to the Canadian Standards Association (CSA) Standard Z94.2-02 "Hearing Protection Devices - Performance, Selection, Care and Use" or contact the agency responsible for occupational health and safety legislation in your jurisdiction for more information.

  • Provides adequate protection. Check the manufacturer's literature.

  • Comfortable enough to be accepted and worn.

What types of hearing protectors are available?

Ear plugs are inserted to block the ear canal. They may be premolded (preformed) or moldable (foam ear plugs). Ear plugs are sold as disposable products or reusable plugs. Custom molded ear plugs are also available.

Semi-insert ear plugs which consist of two ear plugs held over the ends of the ear canal by a rigid headband.

Ear muffs consist of sound-attenuating material and soft ear cushions that fit around the ear and hard outer cups. They are held together by a head band.

How do I pick my hearing protectors?

The choice of hearing protectors is a very personal one and depends on a number of factors including level of noise, comfort, and the suitability of the hearing protector for both the worker and his environment. Most importantly, the hearing protector should provide the desired noise reduction. It is best, where protectors must be used, to provide a choice of a number of different types to chose from.

If the noise exposure is intermittent, ear muffs are more desirable, since it may be inconvenient to remove and reinsert earplugs.

How can I find out how much a hearing protector can reduce a worker's exposure to noise?

Manufacturers provide information about the noise reducing capability of a hearing protector as an NRR (noise reduction rating) number. The NRR ratings are based on noise reduction obtained in laboratory conditions.

How do I use Noise Reduction Rating (NRR) value to determine the protection provided by a hearing protector?

NIOSH recommends using subject fit data based on ANSI S12.6-1997 [ANSI 1997] to estimate hearing protector noise attenuation.

If subject fit data are not available, NIOSH recommends derating hearing protectors by a factor that corresponds to the available real-world data. Specifically, NIOSH recommends that the labeled NRRs be derated as follows:

  • Earmuffs - Subtract 25% from the manufacturer's labeled NRR

  • Formable earplugs - Subtract 50% from the manufacturer's labeled NRR

  • All other earplugs - Subtract 70% from the manufacturers labeled NRR

1. When the noise exposure level in dBC is known, the effective A-weighted noise level (ENL) is:

ENL [dB(A)] = Workplace noise level in dBC - derated NRR

2. When the noise exposure level in dB(A ) is known, the effective A-weighted noise level is:

ENL = Workplace noise level in dB(A) - (derated NRR -7)

There are other single number ratings available. For details refer to the Canadian Standard CSA Z94.2 - 2002. Another single number rating is based on (Subject Fit) Real Ear Attenuation measurements, known as Single Number Rating (Subject Fit 84th percentile) and abbreviated as SNR (SF 84) (for details see ANSI Standard S12.6). "SF 84" indicates that 84% of the users in a well run hearing conservation program are expected to receive at least that much protection.

What is a Noise Reduction Rating (NRR)?

Noise Reduction Rating (NRR) is the measure, in decibels, of how well a hearing protector reduces noise, as specified by the Environmental Protection Agency. The higher the number, the greater the noise reduction. When dual protectors are used, the combined NRR provides approximately 5 decibels more than the higher rated of the two products. For example, using ear plugs (NRR of 29 decibels) with ear muffs (NRR 27) would provide a Noise Reduction Rating of 34 decibels..

What are the advantages and limitations of ear plugs and ear muffs?

There are advantages and disadvantages associated with the use of either ear muffs and ear plugs.

Ear plugs can be mass-produced or individually molded to fit the ear, and they can be reusable or disposable. On the positive side, they are simple to use, less expensive than muffs, and more comfortable in hot or damp work areas. On the negative side, they provide less protection than some muffs, and should not be used in areas having noise levels over 105 dB(A) (A-weighted decibels). They are not as visible as muffs and a supervisor cannot readily check to see if workers are wearing them. They must be properly inserted to provide adequate protection.

Ear muffs can vary with respect to the material and depth of the dome, and the force of the headband. The deeper and heavier the dome, the greater the low-frequency attenuation provided by the protector. The headband must fit tightly enough to maintain a proper seal, yet not be too tight for comfort. On the positive side, ear muffs can usually provide greater protection than plugs, although this is not always true. They are easier to fit, generally more durable than plugs, and they have replaceable parts. On the negative side, they are more expensive, and often less comfortable than plugs, especially in hot work areas. In areas where noise levels are very high, muffs and plugs can be worn together to give better protection.

The following table summarizes the differences between ear plugs and ear muffs.

Comparison of Hearing Protection

Ear Plugs

Ear Muffs


  • small and easily carried

  • convenient to use with other personal protection equipment (can be worn with ear muffs)

  • more comfortable for long-term wear in hot, humid work areas

  • convenient for use in confined work areas


  • less attenuation variability among users

  • designed so that one size fits most head sizes

  • easily seen at a distance to assist in the monitoring of their use

  • not easily misplaced or lost

  • may be worn with minor ear infections


  • requires more time to fit

  • more difficult to insert and remove

  • require good hygiene practices

  • may irritate the ear canal

  • easily misplaced

  • more difficult to see and monitor usage


  • less portable and heavier

  • more inconvenient for use with other personal protective equipment.

  • more uncomfortable in hot, humid work area

  • more inconvenient for use in confined work areas

  • may interfere with the wearing of safety or prescription glasses: wearing glasses results in breaking the seal between the ear muff and the skin and results in decreased hearing protection.

What happens to the protection level when hearing protectors are removed for short periods of time?

In order to get full benefit, hearing protectors must be worn all the time during noisy work. If hearing protectors are removed only for a short duration, the protection is substantially reduced. The following table gives a maximum protection provided for non-continuous use of an ideally fitted "100%" efficient hearing protector. For example if one takes off his/her hearing protector for 5 min in a 8-hour shift, the maximum protection will be 20 dB. The following tables gives other examples.

Maximum protection provided by
non-continuous use of Hearing Protection

Percent time used

Maximum Protection


3 dB


4 dB


5 dB


7 dB


10 dB


13 dB


20 dB


30 dB

How should I care for my hearing protection device?

  • Follow the manufacturer's instructions.

  • Check hearing protection regularly for wear and tear.

  • Replace ear cushions or plugs that are no longer pliable.

  • Replace a unit when head bands are so stretched that they do not keep ear cushions snugly against the head.

  • Disassemble ear muffs to clean.

  • Wash ear muffs with a mild liquid detergent in warm water, and then rinse in clear warm water. Ensure that sound-attenuating material inside the ear cushions does not get wet.

  • Use a soft brush to remove skin oil and dirt that can harden ear cushions.

  • Squeeze excess moisture from the plugs or cushions and then place them on a clean surface to air dry. (Check the manufacturer's recommendations first to find out if the ear plugs are washable.)

Ear protectors must be used ALL THE TIME to get full benefit.