QuietSite™ Noise Barriers combat noise pollution by absorbing and reflecting the sounds. These sound barriers can reduce the perceived noise level (dB) by up to half. Which is equivalent of changing the perceived sound of a 90 lb jackhammer breaking up concrete, to the dB to that of a household blender. Noise in the workplace (occupational noise) not only poses a safety risk to work crews, but also affects the public near job sites. These noise barriers can be used to control the noise in multiple application including on a construction site and are effective in controlling the noise and allow compliance based on the state or local noise ordinance. The 4 ft x 6 ft basic noise reduction barrier panel include brass eyelet grommets which allows you to easily attach the panel to a frame, fence or scaffolding. These noise barriers can easily be linked together to create a customer barrier wall size. These are light enough that one person can easily assemble the panel. Justrite® QuietSite™ Basic Sound Barrier, 72 in Width, PVC Coated Polyester, Gray, Resistant To: Water, 1 in D x 60 in H Dimensions