At Brookvent, we have over 30 years experience in designing, manufacturing and producing energy saving ventilation systems. Due to our expertise, we frequently receive questions from customers. Throughout 2019 we are aiming to post answers to some of the most commonly asked questions to make this information more accessible.
One common topic we are asked about is acoustics. Whether in a window vent or a mechanical system, acoustic properties within ventilation systems are now more important than ever. Below we are going to outline the differences between the two acoustic measurements you may come across when comparing window vents.
To put it very simply, Dne W is the current standard metric for acoustics. The Dne W reading is produced through testing the window vent in isolation, therefore giving a more accurate representation of the vents own acoustic performance
Dnt RW is an older metric, with results produced by testing the window vent in a frame.