Bought 2 models for our front bedrooms as we're on a noisy major road. Installed them yesterday and the main difference in noise is awesome. I went for that 6.4mm laminated glass and positioned the models on the entrance of the window sill to give greatest hole. By sealing https://tilerepairandrestorationl17160.blogkoo.com/top-latest-five-noise-reduction-urban-news-53984175