Reduce the noise from loud machinery, like air compressors, when you house them inside these PORTA-KING Modular Noise-Controlling Enclosures. Sound absorbing panels reduce noise for those working in the area. NOTE: the level of noise being produced can dramatically impact the sound reduction performance of the building. Modular buildings set up quickly and are easy to move or modify after the initial design. Panels are constructed of a 1/2" thick layer of vinyl covered drywall laminated to a solid polystyrene core for enhanced sound absorption. System includes: panels, full-flush steel door with key-knob lockset, post connections that act as vertical raceways, snap-on raceway covers, and 4'W and up to 16' long ceiling panel. Made in USA.PORTA-KING Modular Noise-Controlling Enclosures are not available online. Call a Certified Product Specialist to order.