... place and other enterinment sites. "Available Screen Parameter: Glass Beaded:flame retardant,Mildew resistant,Viewing angle is 35°and Gain is 2 ... .8. Matte White:Screen surface can be cleaned,flame retardant,Mildew resistant,Viewing angle is 55°and Gain is 1 ... .2. HD gray:Screen surface can be cleaned,flame retardant,Mildew resistant,Viewing angle is 85°and Gain is 0 ...