"Well Organized and Uniform Trenches Can Prevent Unnecessary, Costly Incidents"
95 Jewelberry Drive
Webster, NY 14580
ph: 585-671-3592
fax: 585-671-3598
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Zwislocki Ear Muffler (ZEM) – How it works………
The Zwislocki ear muffler's (ZEM) patented design uses the mechanical energy of sound waves (not electronics) to minimize sound before it reaches the human ear. AT 1.7 ounces the ZEM is 80-90% lighter than conventional ear muffs and offers all day comfort. The science behind its design integrates complex principles of sound physics and engineering that world-renowned Professor of Neuroscience Dr. Jozef Zwislocki has developed and perfected.
ZEM patented technology uses the mechanical power of sound with lightweight, plastic chambers to create a vacuum moving sound away from the ears. The effective length of the plastic tubes is equal to a quarter wavelength of sound at about 500 Hz. In this frequency region, the sound entering the tubes and reflected at their closed ends cancels the entering sound, and produces minimal sound pressure. As sound waves across a broader frequency spectrum travel up the chambers a two-stage band pass filter alters the physical properties of the sound wave. The filter makes it possible to achieve uniform sound reduction from 125 Hz to 2000 Hz. The even sound reduction maximizes speech understanding in a noisy environment. At higher sound frequencies, the most injurious to hearing, the flexible cuffs connecting the tubes to ear canals, in combination with the known ear characteristics, produce an even greater noise reduction. Because of these properties and a small size - ZEMs can be stored in a breast pocket; ZEMs combine a superior hearing protection with superior speech communication and convenience. The result; optimal protection and speech intelligibility especially for individuals already hearing impaired.


Still have questions? Please contact us anytime! We look forward to hearing from you.
585-671-3592
95 Jewelberry Drive
Webster, NY 14580
ph: 585-671-3592
fax: 585-671-3598
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