Working in any environment that requires no incoming light can be a challenge if you do not have the right kinds of curtains. With the design of blackout curtains you can be able to control the amount of light that enters the room. The curtains are 100 percent blackout meaning there is zero penetration of light within the room. These types of curtains are recommended for photo studio use, post offices, prisons, school labs, scientific laser labs, hospitals and medical clinics among others. They range in different colors but the most common are black on one side of the curtain while the other side is white but getting an all one color is possible too. They are recommended for lab use as they did pass the NFPA 701 small scale fire test thus they are flame proof making them safe for any environment that is prone to fire outbreaks on regular occasions.