A free program for Android, by UNEP United Nations Environment Programme.

This app is a series of short instructional videos on techniques, safety, and best practice for technicians in the servicing and maintenance of refrigeration and air conditioning systems. The videos serve as a complementary training tool to help technicians revise and retain the skills they have acquired during hands-on training.

This app is part of UN Environment’s (UNEP) Ozone Action. UNEP’s Ozone Action is a global initiative to help the air quality and the health of people, the environment, and living resources be protected by reducing the harmful effects of ozone layer depleting substances, such as chloropic and dinitrofluorobenzen, in the environment. The Ozone Action is carried out in collaboration with the UNEP Member States, the European Union, and other organizations.