The 2019 HCPA Aerosol Pressurized Products Survey serves as an annual index for the business strength of the aerosol products industry. The survey reports the unit volume of aerosol packaging components manufactured and delivered for domestic use during a specific year, as well as estimates for Canadian and Mexican production. Respondents involved in this survey included companies known to manufacture aerosol products or packaging components (fillers of pressurized products, manufacturers of containers and manufacturers of valves). Research on the data reported in this survey was conducted by the independent firm, Association Research, Inc.