Here is the full poop on how to get info about the gold didymium
lenses. Mr. Schell sent this reply to my query. If anybody wants
to pursue it this leads the final word. Geo.
In 1995 I contacted the National Institute for Occupational
Safety and
Health (N.I.O.S.H.), which is a division of the U.S. Department
of Health. NIOSH conducted tests in my studio for two days and
subsequently prepared a comprehensive report that includes the
gold coated didymium II lenses, Aura lenses and more. The
report, which was published by the U.S. Government, includes
graphs. It may be purchased by contacting: National Technical
Information Service (NTIS), 5825 Port Royal Road, Springfield,
Virginia, 22161. You should request the NIOSH Health Hazard
Evaluation Report, HETA 95-0119-2554. It is titled, Glass Schell
Fused Glass Masks, Houston, Texas. It was prepared by: C.Eugene
Moss, H.P., C.S.S. and Gregory A. Burr, C.I.H. If you have any
difficulty getting the publication, you may call NIOSH at:
800-356-4674 Thank you, JIM SCHELL