WKRN-TV - NASHVILLE, Tenn. (WKRN) – NASA issued a warning to let people know unsafe eclipse glasses are being distributed by "unscrupulous companies."
The space agency recommends only using eclipse glasses with ISO 12312-2 printed on them that have been printed by the four following companies:
American Paper Optics, Rainbow Symphony, Thousand Oaks Optical, and TSE 17
NASA says buying your eclipse glasses on Amazon does not ensure their safety.
"Make sure to check your eclipse glasses and viewers to verify that they have the correct ISO designation and were manufactured by one of the four companies recognized by NASA as legitimate," the agency noted.Click here to see the flier put out by NASA.
It's unsafe to look at the sun for any amount of time as it can possibly be dangerous and lead to permanent damage, hence why purchasing eclipse glasses is so important. Read more from NASA's website.