A clear look at the manufacturing process behind NP-ONE custom hearing protection.

5 min read

June 18 2026

1. Ear impressions are taken

The process starts with an ear impression or digital scan. This captures the exact shape of your ear, so the final earplug can be made to fit you personally.

2. The right product is selected

Not every situation needs the same earplug. Based on how you use them — work, music, sleep, swimming or communication — the right model, material and filter can be chosen.

3. The earplug is custom-made

Your impression is used to create an earplug that follows the shape of your ear. This makes the fit more secure and comfortable than standard disposable earplugs.

4. Filters and details are added

Depending on the model, filters, colors, handles or other details are added. This helps the earplug match the way it will be used every day.

What does this mean at a concert or festivals ?

Concerts, festivals and clubs can expose your ears to high sound levels for several hours. The risk increases when you remain close to speakers, visit multiple events in a short period or continue listening loudly through headphones afterwards.

Watch for warning signs such as: