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3M | 3m-plt-H540B

3M™ PELTOR™ H540B Optime™ III Neckband Earmuff (SLC80 34dB, Class 5)

Sale price$95.95

Why you'll love it:

  • Attenuation (SLC80) 34dB - Class 5 Certified Protection
  • Reduces heat build-up
  • Replacable Ear Cushions
  • Neckband Earmuff For Use With Other PPE
  • Very High Noise Reduction
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Description

3M™ PELTOR™ Optime™ III Earmuffs, H540B are our high performance neckband hearing protectors for use in extremely loud environments, reducing noise levels by up to 34 dB. They have a double casing that minimises resonance and comfortable soft, wide cushions to decrease pressure around the ears. Available in headband, helmet attached and Hi-Viz green models.

Get comfortable, high performance hearing protection with 3M™ PELTOR™ Optime™ III Earmuffs. They’re ideal for use in extremely loud environments such as airports, power stations, marine engine rooms and print works. An alternative choice for those wearers who prefer not to wear a handband. The neckband model allows for wear with complimentary PPE, worn around the neck they can be worn with helmets and other head and face apparel without interference. Our neckband earmuffs reduce noise levels up to 34 dB and have a double-casing technology that minimises resonance in the holder casing resulting in maximum high-frequency attenuation. The large space inside the cups helps reduce heat and moisture build-up, and the soft, wide foam cushions offer low contact pressure around the ears, making them comfortable to wear for long periods and increasing compliance through user wear preference. Our earmuff stands for effective protection and highest comfort for the wearer. The cushions and foam inserts are available as Hygiene Kits which are easy to replace if they become worn or damaged, extending the life of the product. They’re available in headband, helmet attached and Hi-Viz green models.

  • Reduces noise levels up to 34 dB
  • Double casing technology minimises resonance effect
  • Large space inside the cups helps minimise heat and moisture build-up
  • Soft, wide, cushions help reduce pressure around the ears
  • Cushions and inserts available as replacement Hygiene Kits
Key certifications:

SLC80 34dB

This hearing protection product complies with the Australia/New Zealand standard and has been tested in accordance with AS/NZS 1270.

It has an SLC80 rating of 34 (which in rough terms means it blocks about 34dB of noise) and is a Class 5 hearing protector.

  • Class 1: SLC80 10–13 - Suitable for <90 dB noise levels
  • Class 2: SLC80 14–17 - Suitable for <90-95 dB noise levels
  • Class 3: SLC80 18-21 - Suitable for <95-100 dB noise levels
  • Class 4: SLC80 22-25 - Suitable for <100-105 dB noise levels
  • Class 5: SLC80 ≥26 - Suitable for <105-110 dB noise levels

SLC80 Explained

Under AS/NZS 1270:2002, hearing protection is tested for its Sound Level Conversion (SLC80) rating, which indicates the difference between the environmental noise and the sound reaching the wearer’s ears. This rating helps determine the appropriate Class of hearing protection for specific noise levels.

Australian and New Zealand workplaces are obligated under AS/NZS 1269.3:2005 to:

  • Conduct noise level surveys to assess exposure (measured as LAeq,8h).
  • Provide suitable hearing protection for workers exposed to noise above 85 dB(A).
  • Ensure hearing protection is maintained and properly fitted to achieve effective attenuation.

Employers must select hearing protection suitable for the measured noise levels, ensuring compliance with occupational noise management regulations.

NRR 30

An NRR of 30 means that the hearing protection is estimated to reduce noise levels by an average of 30 decibels across various frequencies.

'NRR' in hearing protection stands for 'Noise Reduction Rating,' which is a single value used to indicate the average level of noise reduction a hearing protection device provides across different frequencies, essentially telling you how much sound attenuation the earplugs or earmuffs will offer when worn correctly; the higher the NRR value, the greater the noise reduction level is considered to be.

NRR is primarily used as a rating system in North America, while Europe often uses 'SNR' (Single Number Rating) and Australia/New Zealand use 'SLC80'; which both differ slightly in calculation.

SNR 35

An SNR of 35 means that the hearing protection is estimated to reduce noise levels by an average of 35 decibels across various frequencies.

'SNR' in hearing protection stands for 'Single Number Rating,' which is a single value used to indicate the average level of noise reduction a hearing protection device provides across different frequencies, essentially telling you how much sound attenuation the earplugs or earmuffs will offer when worn correctly; the higher the SNR value, the greater the noise reduction level is considered to be.

SNR is primarily used as a rating system in Europe, while North America often uses 'NRR' (Noise Reduction Rating) and Australia/New Zealand use 'SLC80'; which both differ slightly in calculation.

Tech Specs

For Kids
Not designed for children
Certified For
Australia & NZ (SLC80): Yes
USA (NRR): Yes
EUR (SNR): Yes

Product Care

Cleaning

  • Wipe the ear cups and headband with a soft, damp cloth to remove dirt and oils.
  • Avoid using harsh chemicals, bleach, or submerging the earmuffs in water, as this may damage the materials.
  • Allow the earmuffs to air dry completely before storing or reusing them.

Storage

  • Store the earmuffs in a cool, dry place away from direct sunlight and extreme temperatures.
  • Use the original packaging or a protective case to prevent dust accumulation and physical damage when not in use.
  • Avoid placing heavy objects on top of the earmuffs to maintain their shape and effectiveness.

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