# 3M Earmor M300L Passive Hearing Protection Earmuffs, NRR 27

**URL:** https://aio.lv/en/product--3mtm-44749--12519637
**Data updated:** 2026-06-12 15:44 (EEST)
**Category:** Other goods
**Manufacturer:** 3mtm
**Manufacturer code:** 44749
**EAN:** 671716212959
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 22.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 18.59 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--3mtm-44749--12519637

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The 3M Earmor M300L are passive hearing protection earmuffs designed to reduce noise exposure with an NRR 27 rating. These earmuffs provide reliable acoustic isolation for industrial, shooting, or loud environment use. Their ergonomic design ensures comfort during extended wear, effectively dampening harmful sound levels while maintaining a secure fit for consistent protection in various professional and recreational settings.

## Long description

The 3M Earmor M300L passive hearing protection earmuffs are engineered to provide effective noise reduction in demanding environments. With an NRR 27 rating, these earmuffs offer significant acoustic isolation, helping to protect the user's hearing from harmful sound levels. The construction focuses on durability and consistent performance, making them a reliable choice for individuals who require dependable hearing protection during various activities.
Advantages
These earmuffs feature an ergonomic design that prioritizes user comfort, allowing for extended periods of wear without significant fatigue. The robust build quality ensures that the device maintains its protective integrity even in challenging conditions. By utilizing high-quality materials for the ear cushions and headband, the product provides a secure and comfortable fit that effectively seals out noise, ensuring that the user remains protected in loud settings.
Suitable for
Industrial work environments with high noise levels
Shooting sports and firearm training
Construction sites and heavy machinery operation
General loud environments requiring consistent hearing protection
When it may not be suitable
These earmuffs are passive devices and do not feature electronic sound amplification or active noise cancellation. They may not be the ideal choice for users who need to maintain situational awareness or communicate clearly with others while wearing hearing protection in a noisy environment.
Key specifications
Noise Reduction Rating: 27 dB
Passive hearing protection technology
Ergonomic headband design
Adjustable fit for various head sizes
Durable construction for long-term use
How to use
To use the earmuffs, extend the headband fully and place the cups over your ears, ensuring that the cushions create a complete seal against your head. Adjust the headband height until the earmuffs sit securely and comfortably. Ensure that no hair or clothing interferes with the seal between the ear cushions and your skin, as this can significantly reduce the effectiveness of the noise protection.
What to consider before purchase
Verify that the NRR 27 rating meets the safety requirements for your specific environment
Consider if passive protection is sufficient for your communication needs
Check the compatibility with other personal protective equipment such as safety glasses
Usage recommendations
Regularly inspect the ear cushions for signs of wear or damage to ensure a proper seal is maintained. If the cushions become hardened or cracked, replace them to preserve the intended noise reduction performance.

## FAQ

### How much does the 3M Earmor M300L Passive Hearing Protection Earmuffs cost, and is it available for purchase?

The price is 22.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 146 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All 3mtm products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized 3mtm service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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