- ASHRAE , Southern California Chapter American Society of Heating, Refrigerating and Air Conditioning Engineers, Inc. President's Message Sol*Air Newsletter These files are in Adobe PDF format. You will need the current Adobe Acrobat Reader to open them. (www.Adobe.com) Western Section Fresh*Air Newsletter These files are in Adobe PDF format. You will need the current Adobe Acrobat Reader to ...www.ashrae-socal.org