7 Guide to the Reader A summary of the topic can be found at the beginning of most chapters. Each summary, including the main conclusions of the case being described, is highlighted in a blue box. Detailed information, particularly that which should be taken into consideration when adopting new technologies that are energy efficient, safe and reliable are highlighted in a yellow box. In this report, information from different manufacturers is quoted in several places and websites that give additional information on relevant issues are provided in the Reference list. This does not imply that the author or UNEP recommend any manufacturers in preference to others or certify that statements made by these companies are correct in any other sense than the mentioned products/manufacturers are present on many markets. As some products are not known/available in many Article 5 countries, it has been considered relevant to provide information about the existence of these types of products and where to find more information about the technologies, although such a list can never be complete. Summary TECHNICAL INFORMATION