Sanitary Supplies Civil Engineer Squadron Pest Controller Omar Martinez walks around a classroom spraying a disinfectant mist on surfaces in a classroom at Goodfellow Air Force Base, Texas, March 30, 2020. The chemical used by the 17th CES is 99.999% effective at bonding to germs on the surface and killing them within 20 minutes. SHARE IMAGE: Download Image: Full Size (1.82 MB) Photo By: Air Force Sr. Airman Seraiah Wolf VIRIN: 200330-F-IK439-1008M.JPG Photo Gallery