Frequently Asked Questions

Sert-A-Plug: Safe, healthier, more efficient hearing protection!

Sert-A-Plug is covered by U.S. Patent No. 8,955,519. For use under U.S. Patent No. 8,616,213.

Sert-A-Plug™ Trademark is covered by the U.S Patent and Trademark Office.

What is NIHL?

A. NIHL is the acronym for Noise Induced Hearing Loss. NIHL is a preventable injury.

What is STS?

A. STS is the acronym for Standard Threshold Shift. STS is a measurable hearing loss.

What is Ototoxic? 

A. Having a toxic or possible harmful effect on the ear.

How many workers are exposed to hazardous noise in the U.S?

A. The Centers for Disease Control and Prevention estimate about 22 million workers are exposed to hazardous noise each year.

About 10 million workers are exposed to solvents and an unknown number are exposed to other ototoxicants.

Ototoxic chemicals (and examples) include:

  • organic solvents (styrene, trichloroethylene, mixtures)
  • heavy metals (mercury, lead, trimethyltin)
  • asphyxiants (carbon monoxide, hyrdrogen cyanide)
How can I lower my exposure to NIHL, STS and Ototoxins?

A. Always wear the proper hearing protection for every occasion.

What is EPA?

A. EPA is the acronym for Environmental Protection Agency. The EPA is the regulatory agency for hearing protection and hearing protection devices.

What is NRR?

A. NRR is the acronym for Noise Reduction Rate. NRR is the value assigned to each hearing protection device.

What is the #1 hearing protection product in the world?

A. Disposable soft foam earplugs.

Are Sert-A-Plug tools reusable?

A. Yes. Clean tip and fingers before reusing with most brands of foam earplugs.

Where can I purchase Sert-A-Plug?

A. Visit our order page to initiate a Sert-A-Plug Purchase.

Return/Refund Policy

We accept returns if purchased through an authorized dealer. You can return unopened items in the original packaging within 30 days of your purchase with receipt or proof of purchase.

Upon receipt of the returned item, we will fully examine it and notify you via email, within a reasonable period of time, whether you are entitled to a return. If you are entitled to a return, we will refund your purchase price and a credit will automatically be applied to your original method of payment.

Only regular priced items may be refunded. Sale items are non-refundable.

To follow-up on the status of your return, please contact us at

Refunds do not include any shipping and handling charges. Shipping charges for all returns must be prepaid and insured by you. You are responsible for any loss or damage to product during shipment. We do not guarantee that we will receive your returned item. Shipping and handling charges are not refundable. Any amounts refunded will not include the cost of shipping.

Privacy Notice
This privacy notice discloses the privacy practices for This privacy notice applies solely to information collected by this website. It will notify you of the following:

  1. What personally identifiable information is collected from you through the website, how it is used and with whom it may be shared.
  2. What choices are available to you regarding the use of your data.
  3. The security procedures in place to protect the misuse of your information.
  4. How you can correct any inaccuracies in the information.

Information Collection, Use, and Sharing
We are the sole owners of the information collected on this site. We only have access to/collect information that you voluntarily give us via email or other direct contact from you. We will not sell or rent this information to anyone.

We will use your information to respond to you, regarding the reason you contacted us. We will not share your information with any third party outside of our organization, other than as necessary to fulfill your request, e.g. to ship an order.

Unless you ask us not to, we may contact you via email in the future to tell you about specials, new products or services, or changes to this privacy policy.

Your Access to and Control Over Information
You may opt out of any future contacts from us at any time. You can do the following at any time by contacting us via the email address or phone number given on our website:

  • See what data we have about you, if any.
  • Change/correct any data we have about you.
  • Have us delete any data we have about you.
  • Express any concern you have about our use of your data.

We take precautions to protect your information. When you submit sensitive information via the website, your information is protected both online and offline.

Wherever we collect sensitive information (such as credit card data), that information is encrypted and transmitted to us in a secure way. You can verify this by looking for a lock icon in the address bar and looking for “https” at the beginning of the address of the Web page.

While we use encryption to protect sensitive information transmitted online, we also protect your information offline. Only employees who need the information to perform a specific job (for example, billing or customer service) are granted access to personally identifiable information. The computers/servers in which we store personally identifiable information are kept in a secure environment.

If you have questions regarding this privacy policy, you should contact us via email @

Sert-A-Plug Noise Reduction Rating