Guide to Earplugs: Using Hearing Protection Effectively

Earplugs are a reliable form of hearing protection when used correctly and for the appropriate duration. However, improper or prolonged use can lead to issues such as earwax buildup, irritation, infections, or even hearing loss.

This guide will help you select the earplugs best suited to your needs, as well as provide instructions on how to insert and care for them correctly.

Which Type of Earplugs Is Best for Your Job or Worksite?

When choosing earplugs for workplace hearing protection, consider the following:

Assess the level of noise in your environment

Identify any industry-specific safety requirements or needs

Prioritize comfort and ear canal compatibility

Start by reviewing the Noise Reduction Rating (NRR) or Single Number Rating (SNR) of each earplug type. The NRR or SNR indicates the decibels (dBA) that the earplugs can reduce in noisy environments. This helps match hearing protection to the noise level at your worksite.

Different industries often require specific types of earplugs. For instance, metal-detectable earplugs are essential in food processing for contamination control, while banded earplugs are ideal in construction or maintenance settings where quick on/off use is frequent.

Earplugs also vary in shape, size, and material. Finding a pair that's comfortable to wear in your ear canal gives better protection and less irritation over time.

Use the table below to find the best earplug type for your job, comfort, and safety needs.

How to Use Earplugs Safely and Effectively

Wearing earplugs is only effective when used properly. To ensure optimal hearing protection, it’s essential to focus on proper fit, correct usage, and regular maintenance.

What Is Earplug Fit Testing and Why Is It Important for Hearing Safety?

Not all earplugs provide the same level of protection for every individual. Fit testing helps confirm that your earplugs are properly sealing and providing the right level of protection in your work environment. Fit testing is especially valuable in high-noise environments or industries that prioritize safety. Even when not required, it’s a good practice to test and confirm a proper seal and fit.

We offer fit testing kits from Howard Leight^TM and 3M^TM, two of the most trusted names in hearing protection:

Howard Leight^TM VeriPRO^® Fit Testing System. This system offers an accurate, real-world measure of hearing protection fit using in-ear testing. It also comes with employee training integration.
3M^TM E-A-Rfit^TM Dual-Ear Validation System. This system measures personal attenuation ratings (PAR) for both ears in less than 5 seconds. This helps verify that earplugs are correctly fitted for each worker.

These systems are ideal for safety programs focused on compliance, worker education, and reducing the risk of noise-induced hearing loss (NIHL).

How to Insert and Remove Earplugs Properly? (NIOSH Guidelines)

For earplugs to work effectively, they need to be inserted correctly and removed carefully. The National Institute for Occupational Safety and Health (NIOSH) recommends the following steps:

Foam earplugs: Roll the plug into a thin cylinder. With your opposite hand, gently pull the top of your ear up and back to straighten the ear canal. Insert the foam plug and hold it in place for a few seconds until it fully expands.
Pre-molded or reusable earplugs: These don’t require rolling. Insert them using a gentle push-and-twist motion, while pulling the ear upward for proper alignment.

To remove, slowly twist the earplug and gently pull it out to avoid pressure changes that can cause discomfort.

How Long Can You Wear Earplugs Safely?

How long you can wear earplugs depends on the type:

Disposable earplugs are designed for one-time use and should be discarded after each shift or when soiled.
Reusable earplugs can be worn multiple times, but should be cleaned between uses and replaced regularly. Consider wear and manufacturer recommendations.

Always follow workplace safety protocols and product instructions to ensure ongoing effectiveness and safety.

How Often Should You Clean or Replace Earplugs?

Keeping earplugs clean not only extends their lifespan but also helps prevent ear infections and irritation.

Wash reusable earplugs with mild soap and warm water. Dry thoroughly before reuse.
Store earplugs in a clean, dry container to prevent contamination.
Inspect earplugs before each use. Replace if they are discoloured, hardened, damaged, or no longer form a tight seal.

Regular cleaning and replacement help ensure your earplugs continue to provide safe and effective protection.

What Are the Health Risks of Not Wearing or Misusing Earplugs?

Exposure to loud or continuous noise without proper hearing protection can lead to permanent hearing damage. Common health risks include:

Noise-Induced Hearing Loss (NIHL). Caused by repeated exposure to noise levels above 85 decibels. NIHL is permanent and often develops gradually, making it difficult to detect early.

Tinnitus. A constant or intermittent ringing, buzzing, or humming in the ears. Tinnitus can result from prolonged noise exposure and may interfere with concentration, sleep, and mental well-being.

Temporary Threshold Shift (TTS). After a loud event, you may experience muffled hearing or difficulty understanding speech. While temporary, repeated TTS events can eventually lead to permanent hearing loss.

Acoustic Trauma. A sudden burst of loud noise from machines, explosions, or tools can quickly damage your hearing if you don't wear protection.

Using well-fitted earplugs in any high-noise environment is one of the most effective ways to protect your hearing health. Incorporate fit testing, regular training, and product inspections into your safety routine to reduce the long-term health impact of workplace noise exposure.

Type	Material	Example Models	Noise Reduction Rating (NRR)	Pros	Cons	Ideal For
Foam Earplugs	Polyurethane Foam	3M^TM E-A-R^TM Classic Howard Leight^TM Max	29–33 dB	High noise reduction Affordable Comfortable for most users	One-time use Requires clean hands for insertion	General industry, high-noise environments
Pre-Molded Earplugs	Silicone or Polymer	3M^TM UltraFit Howard Leight^TM Fusion	25–27 dB	Reusable No rolling required Easy to clean	May not fit all ears Higher cost than foam	Long-term use, users needing easy insertion
Metal-Detectable	Foam or Silicone	3M^TM E-A-R^TM Metal Detectable Howard Leight^TM Laser Trak^®	27–29 dB	Food-safe Easily detected by scanners	Slightly higher cost	Food processing, pharma, cleanrooms
Banded Earplugs	Foam or Rubber Tips	3M^TM E-A-R^TM Caboflex Howard Leight^TM QuietBand	25 dB	Easy to remove and reinsert Convenient around intermittent noise	Lower protection than deeply inserted plugs	Construction, inspections, intermittent exposure
Corded Foam Earplugs	Polyurethane Foam	3M^TM 1110 Corded Howard Leight^TM Max-Lite Corded	30–33 dB	Easy to remove Reduces loss of earplugs	Cord may interfere with some PPE	Workers moving frequently between zones
Earplug Dispensers	Dispenser-Compatible	3M^TM One-Touch Pro Dispenser Howard Leight^TM Leight Source 500	Varies	Reduces waste Increases hygiene Supports bulk use	Initial setup cost	Warehouses, manufacturing plants

Guide to Earplugs: Using Hearing Protection Effectively

Which Type of Earplugs Is Best for Your Job or Worksite?

How to Use Earplugs Safely and Effectively

What Is Earplug Fit Testing and Why Is It Important for Hearing Safety?

How to Insert and Remove Earplugs Properly? (NIOSH Guidelines)

How Long Can You Wear Earplugs Safely?

How Often Should You Clean or Replace Earplugs?

What Are the Health Risks of Not Wearing or Misusing Earplugs?

Related Reading

Sign Up For Emails: Exclusive Sales, Promo Codes, and More Directly to Your Inbox.

Shop

Shop

Services

Services

Company

Company