Does NOT block out light
I just received my order and tested it in a lit room. It DOES NOT block light from the eyes. At most, it filters the light about 25%-30%.<br /><br />I purchased it for blocking light, but it doesn't do a great job at it. The binchotan was only a plus for my consideration of this purchase.<br /><br />And it seems I was highly mislead by online and Amazon reviews.<br /><br />Purchase at your own risk, but I don't recommend doing so at about $30.00 for an item worth about $2.00 - $4.00 at most.
Rating: 2 stars