UNSH hangers are recommended for use near critically quiet areas for isolating any suspended source of both audible and inaudible noise and vibration. Suspended mechanical equipment such as in-line fans, cabinet fans, and piping and ductwork in close proximity to mechanical equipment are typical uses of Model UNSH hangers.
High sound transmission loss ceiling systems can be effectively isolated by the use of Model UNSH hangers in the ceiling suspension system. This hanger model is particularly sui table for use in isolated ceiling systems used to shield spaces from mechanical equipment rooms, flyover aircraft, and similar sound isolation involving predominantly low frequency noise.