Dear Researchers, Caltech Safety has identified some techniques and products that will help prevent fogging up of eyewear, for instance, lab goggles.
FOGGING EYEWARE? Fog is the result of water vapor that has condensed into fine droplets and collected on the lens. The answer to preventing fogging is to apply a thin surfactant film that reduces this surface tension and causes the water molecules to spread out evenly into a transparent layer. Here are some solutions: * For any regular framed style of eyewear, there are anti-fog wipes. The Defog It Tear-and-Go brand (click here)<https://www.amazon.com/Clarity-Defog-Anti-fog-Reusable-Wipes/dp/B002BG588K/ref=pd_lpo_121_img_0/147-0283763-7040271?_encoding=UTF8&pd_rd_i=B002BG588K&pd_rd_r=10d493fc-0aa8-4205-beec-54fb7c16944b&pd_rd_w=qQHTN&pd_rd_wg=H1HPe&pf_rd_p=7b36d496-f366-4631-94d3-61b87b52511b&pf_rd_r=J54JYVY7YK107QT687KC&psc=1&refRID=J54JYVY7YK107QT687KC>of re-useable wipes is efficient. * For ski goggles style of eyewear, there are anti-fog inserts available from Laservision (click here).<https://www.lasersafety.com/product/a14-fafs/> * Wash with soapy water, shake off the excess moisture, and then let them air-dry, they’ll resist fogging. For more information on Safety in the lab, please do not hesitate to contact Caltech’s Environment, Health, and Safety<mailto:[email protected]> office ([email protected]<mailto:[email protected]> or ext. 6727). Sincerely, Angie Angie Riley Department Administrator - Division of Engineering and Applied Science Department of Electrical Engineering |Cherng Department of Medical Engineering California Institute of Technology | 1200 E California Blvd | MC 136-93 | Pasadena, CA 91125; [email protected]<mailto:[email protected]> | 626.395.8462
