The Enclosure reduces noise level by up to 10 dBA, so you wont be disturbed when machine is running. The laser or CNC work pauses automatically when either door is opened, giving you extra protection. Temperature is maintained when printing with ABS, so that your print is less likely to warp due to temperature variation. The panels are made of brown acrylic, which protect you from the laser. Extract potentially harmful smoke created during laser engraving. Pre-assembled doors of A350 and A250 enclosure can be triple-folded, taking up only a very limited space.