Behind-the-Neck Earmuff — GE PPE GM454, 26 dB NRR ANSI S3.19

The earmuff features two adjustment systems: (1) an adjustable stainless steel neckband that accommodates different head/neck sizes, and (2) an adjustable Velcro headstrap for a secure, custom fit. The earcups also have adjustable pivot points that allow them to tilt for a better seal. Dimension A (neckband width) adjusts from a minimum of 5.25 inches (13.33 cm) to a maximum of 5.5 inches (13.97 cm), and dimension B measures 6.75 inches (17.14 cm).

The earcup shells are made of high-impact ABS (Acrylonitrile Butadiene Styrene) plastic in gray. The ear cushion pads — the soft part that contacts your ears — are made of polyurethane foam, which provides a comfortable seal and effective noise attenuation.

The neckband is made of stainless steel and is black in color. Stainless steel provides durability and resistance to corrosion, making it suitable for demanding work environments.

The headstrap is an adjustable Velcro strap that goes over the top of the head to help stabilize the earmuff and ensure a tight, secure fit. Adjusting both the neckband and the headstrap together maximizes the acoustic seal around your ears for optimal noise reduction.

The GM454 has been tested per ANSI S3.19-1974 at the following frequencies (mean attenuation / standard deviation): 125 Hz: 21.0 dB / 3.1 dB | 250 Hz: 22.8 dB / 2.0 dB | 500 Hz: 31.0 dB / 2.7 dB | 1000 Hz: 38.3 dB / 3.5 dB | 2000 Hz: 38.8 dB / 3.3 dB | 3150 Hz: 41.8 dB / 2.7 dB | 4000 Hz: 40.3 dB / 3.3 dB | 6300 Hz: 41.1 dB / 3.4 dB | 8000 Hz: 40.5 dB / 3.6 dB. This earmuff performs especially well at mid-to-high frequencies (1000 Hz and above), which is where most hazardous industrial and machinery noise occurs.

At 125 Hz (low frequency), the mean attenuation is 21.0 dB, and at 250 Hz it is 22.8 dB. While this provides meaningful protection, earmuffs generally offer less attenuation at very low frequencies compared to mid and high frequencies. If your primary concern is very low-frequency noise, consider pairing earmuffs with earplugs for additional protection.

Yes, wearing earmuffs over earplugs (dual hearing protection) is a recognized practice for extremely loud environments. However, the total combined NRR is not simply additive — consult OSHA guidelines for calculating combined protection levels. Always follow your employer's hearing conservation program requirements.

The GM454 meets ANSI S3.19-1974 testing standards, which is the measurement standard recognized by OSHA for hearing protectors. Whether it meets your specific workplace requirements depends on the noise levels in your environment and your employer's hearing conservation program. Consult a safety professional to confirm it is appropriate for your situation.

The earcups are gray and the neckband is black. There is one color option available for this model (SKU GM454).

Yes, the GM454 is described as a compact, lightweight, and portable design. The exact individual unit weight is not published in the product specification sheet. The full shipping case (20 units) weighs approximately 9 kg / 19.85 lb, which gives a rough per-unit shipping weight. For the precise net product weight, please contact the seller.

The GM454 is sold individually (each). Bulk ordering is available: each inner pack contains 1 unit, and a full shipping case contains 20 units. The case dimensions are 19.8" x 11.8" x 15.9" (50.5 x 30 x 40.5 cm) and weigh approximately 9 kg / 19.85 lb.

The GE PPE GM454 Behind-The-Neck Earmuff is manufactured in China.

The GE brand name and logo are used under trademark license by Caco Abbo Internacional, S.A. GE is a trademark of General Electric Company. The product is manufactured and distributed by the licensee, not directly by GE.

The SKU is GM454. The UPC barcode for a single unit (each) is 810084960196. The inner pack barcode is 10810084960193, and the case barcode is 20810084960190.

For maximum noise reduction: (1) Adjust the stainless steel neckband so it sits comfortably behind your neck. (2) Position the earcups over both ears, ensuring the cushion pads form a complete seal around each ear. (3) Use the adjustable Velcro headstrap over the top of your head to stabilize the fit. (4) Use the earcup pivot points to tilt the cups until they sit flush against your head. A proper airtight seal is critical — any gap will significantly reduce the effective noise attenuation.

The product specification does not include specific cleaning instructions. Generally for earmuffs with polyurethane foam cushions: wipe the earcup surfaces with a damp cloth and mild soap; avoid soaking or submerging the ear cushions as this can degrade the foam. Inspect the cushions regularly for cracks, hardening, or wear, and replace them if the seal is compromised. Do not use harsh solvents on the ABS shells. Contact the seller for any manufacturer-specific cleaning guidance.

Replacement cushion availability is not specified in the product documentation. Please contact the seller or manufacturer (Caco Abbo Internacional) to confirm whether replacement ear cushion pads are available for this model.

No. The GM454 is a passive hearing protector only. It does not include any electronic components, active noise cancellation, Bluetooth, radio, or communication capabilities. Noise reduction is achieved purely through the physical barrier of the ABS earcups and polyurethane foam cushion seal.

Yes, with an NRR of 26 dB, this earmuff provides meaningful protection against gunshot noise. For shooting sports, especially indoor ranges, many safety experts recommend dual protection (earmuffs plus earplugs) for maximum noise reduction given the extreme peak sound levels of firearms. Always follow range safety guidelines.

This product is designed and tested for occupational/industrial use by adults. The spec sheet does not indicate suitability for children. The adjustable neckband ranges from 5.25" to 5.5" wide, which is sized for adults. We do not recommend this as a children's hearing protection device without confirming proper fit.

Warranty information is not specified in the product documentation. Please check with the seller or contact Caco Abbo Internacional directly for warranty terms and conditions.