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Abstract
Industrial noise in the working environment has adverse effects on human hearing; literature and private studies confirm that. It has been determined that significant changes in the hearing threshold level occur in the high frequency audiometry, i.e., in the 8–20 kHz frequency range. Therefore, it is important to determine the effect of ultrasonic noise (10–40 kHz) on the human body in the working environment. This review describes hearing and nonhearing effects (thermal effects, subjective symptoms and functional changes) of the exposure to noise emitted by ultrasound devices. Many countries have standard health exposure limits to prevent effects of the exposure to ultrasonic noise in the working environment.
