The WhatGas? application by UNEP is a vital resource for identifying refrigerant gases, including ozone-depleting substances and HFCs. Designed for customs officers and technicians, this mobile-friendly tool offers an intuitive interface for quick access to essential information. Users can search for chemicals by name or browse a detailed database that includes chemical formulas, common trade names, and identifiers such as CAS numbers and UN numbers. The app also provides crucial data on flammability, hazards, and compliance with the Montreal Protocol.

Updated to include the latest scientific data, the application features standard ODP and GWP values, new refrigerant mixtures, and the updated 2022 Harmonized System nomenclature. It supports multiple languages, including French and Spanish, making it accessible to a wider audience. This tool is an integral part of UNEP OzonAction's efforts to assist developing countries in maintaining compliance with environmental regulations.