Blackout curtains are made with a fabric that is effective at blocking light out. Without any extra chemical coatings, blackout curtains will block out 85-97% of light. Curtains with a chemical coating can be added to block out 100% of light.
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Blackout curtains are made with a fabric that is effective at blocking light out. Without any extra chemical coatings, blackout curtains will block out 85-97% of light. Curtains with a chemical coating can be added to block out 100% of light.