Purpose Exposure to excessive noise volumes is an occupational health and safety risk. Australian guidelines recommend a time weighted exposure maximum of 85 decibel (dB) or a maximum peak noise level of up to 140 dB, as chronic and repeated high dB exposure can result in significant hearing impairment. The aim of this study was to assess the volume of noise generated by common surgical instruments while utilising the National Institute for Occupational Safety and Health (NIOSH) app. Methods Sound levels were measured using the NIOSH app and formal decibel meter for specific instruments while in use in theatre. A minimum of three readings per instrument were taken at immediate and working distances. Results The Padgett Dermatome and Frazier Sucker exceeded recommended exposure limits with an averaged time weighted exposure reading of 85.7 dB(A) and 85.09 dB(A) respectively. Peak readings ranged from 89.9 to 114.7 dB(C) with none of the instruments exceeding a peak sound level beyond the recommended level of 140 dB(C). Conclusion The cumulative effect of loud surgical instruments across prolonged or combined operations may result in theatre staff being exposed to noise levels above Australian guidelines. This impacts the health and wellbeing of staff as well as staff performance and subsequently patient care. Utilizing a mobile phone app such as the NIOSH, is a convenient option for measurement of noise pollution within the work place and thus can empower staff to assist in improving their work environment and long term health.