Ultrasound independent Advisory Group on Non-ionising Radiation (AGNIR) produced a report in 2010, which was published by the UK Health Protection Agency (HPA). This report recommended an exposure limit for the general public to airborne ultrasound sound pressure levels (SPL) of 70 dB (at 20 kHz), and 100 dB (at 25 kHz and above). Ultrasound Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is not different from "normal" (audible) sound in its physical properties, except that humans cannot hear it. This limit varies from person to person and is approximately 20 kilohertz (20,000
Less Is More (Lost Frequencies album) on 24 May 2015. "Beautiful Life" (featuring Sandro Cavazza) was released as the third single on 3 June 2016. "What Is Love 2016" was released as the fourth single on 7 October 2016. "All or Nothing" (featuring Axel Ehnström) was released as the fifth single on 17 February 2017. Less Is More (Lost Frequencies album) Less Is More is the debut studio album by Belgian DJ and record producer Lost Frequencies. It was released on 21 October 2016, by Lost & Cie under exclusive license to Armada Music and Ultra Music. The album was shortlisted by IMPALA (The Independent Music