ANTI-NOISE EAR MUGS 34 DB YT-74630 Mark Yato Symbol YT-74630 Series GRD SNR attenuation value 34 dB Protection category III Standard EN 352-1:2020 Material ABS, foam, stainless steel Adjustable Yes Mass 275 g Anti-noise earmuffs with a wide headband and double attenuation technology. The wide and flat headband distributes the pressure evenly. Double damping is one of the highest noise reductions on the market, achieved without the need to use excessive pressure on the ears. Thanks to this, working in the earmuffs is pleasant and does not cause discomfort, even after many hours of wearing. Attenuation efficiency: SNR 34 dB 5 cm wide headband with pressure-relieving cushions four-point stainless steel wire handles wide and soft sealing pillows that fit well to the head, made of skin-friendly materials weight: 275 g Pillow dimensions: dimension A: approx. 40 mm dimension B: approx. 65 mm Pillow dimensions How to choose earmuffs for your workplace: Protective, anti-noise earmuffs protect the operator against harmful noise by reducing the sound level measured in decibels by the SNR parameter value. The upper limit for an 8-hour working day is set at 85 dB. If average noise measurements in the workplace exceed this value, then you should purchase earmuffs with an SNR parameter that will reduce the noise level to 85 dB or less. Assuming that we will work all the time wearing earmuffs with an SNR of 32 and in a work environment with a noise intensity of 116 dB, then we will reduce the noise to 84 dB. If the time the operator wears the earmuffs is longer than several minutes, it is worth paying more attention to design elements that improve the comfort of wearing them. Sufficiently wide sealing cushions made of skin-friendly materials should fit the user's entire auricle. The soft padding of the headband relieves pressure on the upper part of the head. However, the strength with which the earmuffs adhere to the head affects not only the comfort, but also the damping efficiency, so for continuous use it is worth choosing earmuffs with, not necessarily the highest available, but an appropriately selected SNR parameter.