3M PELTOR X3A Over-the-Head Ear MuffsThe twin-headband of the 3M Peltor X3A Over-the-Head Ear Muffs is designed to allow for heat dispersion, improving your levels of comfort over the day, while continuing to supply 33dB of protection. The ABS plastic cups of the ear muffs are rigid, and resistant to impacts and knocks.Key Information EN 352 - 1 SNR (Simplified Noise Reduction): 33dB One universal size Price is per pair of ear muffsWhat Are the Key Features of the 3M Peltor X3A Over-the-Head Ear Muffs? Noise-Reduction: Protection against high-level industrial noise and other loud sounds Electrically-Resistant: Twin headband is electrically insulated for protection in ESD environments Spacer: Newly designed spacer helps to improve attenuation without adding on bulk and weight Comfortable: Optimised weight distribution and balance for comfort, ear cups pivot for exact fit Breathable: Twin headband design for heat dispersion Impact Resistant: Rigid ABS cups for impact resistanceWhat Are the Safety Specifications of the 3M Peltor X3A Over-the-Head Ear Muffs?The 3M E-A-R FX Earplugs offer protection against extremely high levels of background noise, with an SNR of 33dB.EN 352 - 1The 3M Ear Muffs meet EN 352 - 1 for ear protection. This means that they are suitable as ear defenders in loud conditions.SNR (Simplified Noise Reduction)The Ear Defenders achieve an SNR score of 33dB. High Frequency Noises: 35 Medium Frequency Noises: 30 Low Frequency Noises: 25What Are the Uses of the 3M Peltor X3A Over-the-Head Ear Muffs?The ear muffs are ideal for use in extremely loud environments. Following are some suitable applications: Agricultural Pharmaceutical Utilities Metal processing Automotive Manufacturing Printing Foundry Heavy engineering Mining Engine rooms Textile manufacturingImpact and Electricity ResistantThe ABS cups of the ear muffs are rigid and resistant to impacts, to protect you from any knocks and bumps you might encounter in industrial settings. In addition, the headband is electrically insulated, reducing heat on top of the head for improved comfort.What Is Signal to Noise Ratio (SNR) and Noise Attenuation?The SNR ratio of ear-protection indicates the amount by which background noise will be reduced, or attenuated. So if you work around machinery with a background noise of 100dB, then earplugs with an SNR of 32 will reduce the background noise to 68dB, protecting your ears. Some ear defenders will reduce the overall background noise by differing amounts depending on whether the noise is medium, low or high frequency.Sizing of the 3M Corded 39dB EarplugsThe earplugs are available in one size that should suit most users.Additional Documentation 3M PELTOR X3A Over-the-Head Ear Muffs