Katrina,
My book “Run Your Shop Without It Running You” has a chapter on Shop
Design. That chapter covers ventilation / air filtration and gives
several hood designs for different applications.
Other chapters include: Pricing, Productivity in the Shop, Take-In
procedures, plus more.
For more and to order, visit my web site
http://www.BWSimon.com
Brad Simon
B W Simon - Helping make Jewelry Repair Shops more Efficient and
Profitable