“We used to say that you should look for evidence that they comply with the ISO 12312-2 international safety standard for filters for direct viewing of the Sun,” the AAS says on its website. “But now the marketplace is being flooded by counterfeit eclipse glasses that are labeled as if they’re ISO-compliant when in fact they are not. So now we suggest that you make sure you get (or got) your eclipse viewers from one of the suppliers listed on our Reputable Vendors of Solar Filters & Viewers page.”

The Illinois Department of Public Health recommends this site as a resource.

‘Eclipse Glasses’ and Handheld Viewers

The following telescope and solar-filter companies manufacture and/or sell eclipse glasses (sometimes called eclipse shades) and/or handheld solar viewers that have been verified by an accredited testing laboratory to meet the ISO 12312-2 international safety standard for such products. They are listed in alphabetical order; those with an asterisk (*) are based outside the United States.

Solar Viewer Brands

• American Paper Optics (Eclipser) / EclipseGlasses.com / 3dglassesonline.com
• APM Telescopes (Sunfilter Glasses)*
• Baader Planetarium (AstroSolar Silver/Gold Film)* [see note]
• Celestron (EclipSmart Glasses & Viewers)
• Daylight Sky (plastic glasses only)
• DayStar (Solar Glasses)
• Explore Scientific (Solar Eclipse Sun Catcher Glasses)
• Halo Solar Eclipse Spectacles
• Lunt Solar Systems (SUNsafe SUNglasses) [see their unique kid-size eclipse glasses]
• Meade Instruments (EclipseView Glasses & Viewers)
• Rainbow Symphony (Eclipse Shades) [sold out]
• Seymour Solar (Helios Glasses)
• Thousand Oaks Optical (Silver-Black Polymer & SolarLite)
• TSE 17 / 110th.de (Solar Filter Foil)

Numerous other astronomy- and science-related enterprises and organizations sell eclipse glasses made by the companies listed above. If you buy from any of these businesses, you know you are getting ISO-compliant safe solar viewers.

Astronomy, Science & Optics Vendors

• Adler Planetarium [sold out]
• Adorama Camera
• Agena AstroProducts
• Alpine Astronomical
• AmericanEclipseUSA.com
• American Museum of Natural History [sold out]
• American Science & Surplus
• AstroBox/EclipseKit.com
• Astronomers Without Borders
• Astronomical Society of the Pacific
• Astronomy Magazine / My Science Shop
• Astroshop.eu
• Astrozap Telescopes & Accessories
• Avenues of the Sky
• B&H Photo Video
• Chabot Space & Science Center [sold out]
• Charlie Bates Solar Astronomy Project
• Company Seven
• Connecticut Science Center [sold out]
• David Chandler Company
• Discover Magazine / My Science Shop
• EarthSky.org
• Eclipse2017.org
• Eclipse for a Cause
• EclipseGlasses.co.uk
• EclipseStuff.com
• Explore One
• Flinn Scientific
• Fort Worth Museum of Science & History [sold out]
• GreatAmericanEclipse.com
• Great Lakes Science Center [sold out]
• Griffith Observatory [sold out]
• High Point Scientific
• ICSTARS
• Khan Scope Centre
• Land Sea & Sky
• Liberty Science Center [sold out]
• Lire la Nature & Astronomie Plus
• MMI Corporation
• Museum of Science, Boston [sold out]
• Museum of Science+Industry Chicago [sold out]
• NationalEclipse.com
• New York Hall of Science [sold out]
• Oceanside Photo & Telescope
• Online Science Mall
• Ontario Telescope & Accessories
• Optics Planet
• Orange County Telescope
• Orion Telescopes & Binoculars
• Science City at Union Station
• Sky & Telescope Magazine / Shop at Sky
• SkyNews Magazine
• Space Racers / AugustEclipse.com
• Space Update
• Starizona
• STEMcell Science Shop / Mudge Scientific
• Steve Spangler Science
• The Planetary Society
• The Tech Museum of Innovation, San Jose [sold out]
• Woodland Hills Camera & Telescopes

Some (not all) locations in the following retail chains sell ISO-compliant safe eclipse glasses and/or handheld viewers made by the companies listed at the top of this page, so you can confidently buy solar viewers if you find them in their stores — but not on their websites, as some chains use different suppliers for their websites than they do for their stores. Links are provided only to help you locate the retail store nearest you.

Retail Chains

• 7-Eleven
• Best Buy
• Bi-Mart
• Casey’s General Store
• Circle K
• Hobby Town
• Kirklands
• Kroger
• London Drugs
• Love’s Travel Stops
• Lowe’s
• Maverik
• McDonald’s (Oregon only)
• Pilot/Flying J
• Toys “R” Us
• Walmart

From NASA