This is an ancient project. It was developed around 2004. I could't believe it I could dig up some pictures to show the process. Although the visual language is outdated, the documents cover the major steps. I wasn't paying attention to document a project development process. This one survives only because I wanted to use it as an example in one of my book. So I keep telling my students, document, document, document. I learned this in a hard way
I saw this product sketch on Behance a couple years later, knowing someone else drawing the product you designed is amazing feeling.
IDEATION + PROTOTYPING
This Fan with a Mini AC System was a product designed and developed for Chinese market. It could reduce a room temperature without dripping water. (water was evaporated while circling around the system.)