Apsauginės ausinės | su laikikliu šalmui (YT-74624)

Ear muffs YT-74624 with helmet mount. The swivel adapter allows attachment to helmets with a slot width of at least 25 mm. Fits YATO helmets with index numbers from YT-73970 to YT-73975 (29 mm gap) and VOREL with index numbers from 74190 to 74195 (31 mm gap). TECHNICAL DATA. suppression efficiency: SNR 28 dB. clamping width: 25 mm. stainless steel four point wire handles. weight: about 215 g. Pillow dimensions:. dimension A: approx. 40 mm. dimension B: approx. 65 mm. HOW TO CHOOSE EARPHONES FOR THE WORKPLACE:. Protective, noise-reducing earmuffs protect the operator against harmful noise by lowering the sound level measured in decibels by the value of the SNR parameter. The upper limit for an 8-hour working day is set at 85 dB. If the average noise measurements at the workplace exceed this value, then you should have ear muffs with the SNR parameter, which will allow the noise level to be reduced to 85 dB or less. Assuming that we will work all the time in earmuffs with the SNR 32 parameter and in a working environment with a noise level of 116 dB, then we will reduce the noise to 84 dB.. If the operator wears the earmuffs for longer than a dozen or so minutes, then it is worth paying more attention to the structural elements improving the comfort of wearing them. Sufficiently wide sealing cushions made of skin-friendly materials should fit the entire auricle of the user. The soft headband cushion will ease the pressure on the top of the head. On the other hand, the force with which the earmuffs adhere to the head affects not only comfort, but also the effectiveness of damping, so for continuous operation, it is worth choosing earmuffs with not necessarily the highest available, but appropriately selected SNR parameter.. Parameters. Protection category: III. SNR suppression value [db]: 28