Attaching acrylic or glass sheets to the surface within your windows may help lessen undesirable noise, like chatty neighbors in a late-night bonfire. Bought two units for our entrance bedrooms as we are on a noisy principal road. Set up them yesterday and the real difference in noise is astounding. https://beautcjsz.loginblogin.com/32579757/top-guidelines-of-noise-reduction-windows-in-hammersmith