I hadn't thought about doing paint chips. That's a great idea.
I haven't started doing a lot of mixing colors yet, so my system is a little different. I bought some 1 inch round labels(Avery 5408) and type the color on it, then stick it on the cap. Then I print the month and year and stick it on the bottom. I also make the background Gray for Metallizers and Green for Acrylics.
each fan is 240 CFM, but I will need to use flexible hose to vent (about 8 feet). From reading some of the other posts, you need more suction for the flex rather than the solid pipe. Do you think this might be overkill?