How to use lematec air foam gun set?

How to use the Lematec air foam gun set for car wash or other applications?

*The Car Foam Gun is powered with or without an air compressor depending on your preference. *It features many functions and is extremely versatile for your convenience.

*Auto Wash Sprayer attachment included for detail work doubles as a high-pressure cleaning tool for all household cleaning projects.
*Car, Auto, and Shop Detailer by LEMATEC is the only tool with so much functionality. One tool with many uses.
*Not just an average Foam Cannon Kit. Use it around the garden, pressure wash around your house, and dust your workshop or garage easily.
*Blower attachment included ridding leftover moisture from all those nooks and crannies