SCALA2_Silent_FACT SHEET

SCALA2_Silent_FACT SHEETSCALA2 Model2 - Fact Sheet Silent. Like never before. FACT: SCALA2 Model 2 produces a noise level as low as 44 dB (A) when running. This is a 3 dB(A) reduction in sound pressure compared to the previous generation, translating to a 50% perceived noise reduction to the human ear. Silent Noise Measurements Measurement made in the Grundfos Sound and Vibration Lab and documented in a Sound Measurement Report according to ISO 3745. Result “50% perceived noise reduction by the human ear” Calculation made according to the theory in: Authors: Paul Peter Urone, Roger Hinrichs Publisher/website: OpenStax Book title: College Physics Publication date: Jun 21, 2012 Location: Houston, Texas Book Reference URL: https://openstax.org/books/college-physics/pages/1-introduction-to-science-and-the-realm-of-physics-physical-quantities-and-units Section Reference URL: https://openstax.org/books/college-physics/pages/17-introduction-to-the-physics-of-hearingPage 2