You will want to devide your work space into a few rooms to remain clean. You will need an extraction room that is c1d1, room for packaging/weighing, washing+drying area for glassware, a clean lung room for chillers, aircompressors ,and vacuum pumps.make a list of all your equipment and it’s physical size. from that list construct a floor plan, I would recommend building your c1d1 room first. The room should be sized so you still work without being too large. Airflow is key, dead air space will accumulate flammable gas. Air should be forced into the room from the top with explosion proof fans. The vents should be low on the floor to allow heavy gas puddles to be evacuated.the flow to these vents shoud be absolutly unobstructed by equipment. You will want 800cfm while running, and a monitor that kicks up the fan if gas is dected. There should be an audible gas dector and fire sprinkler system installed as well.All electrical must be run in waterproof conduit, I would avoid putting any conduit directly into the room. Run the electrical for the fans on the outside of the room.lights must be explosion proof as well. I would recommend using a pnumatic recovery pump, and plumbing compressed air into the room. If you have devices like chilers, air compressors, water heaters/chillers they must be located in a lung room nearby and plumbed into the extraction room.the lung room can use standard ventilation fans to move air. You will want quite a bit of airflow in there to keep everything cool. Moving on to the lab, you should construct a series of sturdy benches. first bench should be your winterization area, you should have a freezer, and enough space for your filtration gear, pumps, filter medias, carboys, ext. Located near by should be your rotery evaporators. Next bench should be used for weighing/product handling/ vacuum oven. Last bench should be your distillation bench, this is where you refine your alcohol, and carry out short path distillation. It wouldn’t hurt to weld up a lab frame to clamp your glassware to. Build it like a grid, with a 25cm spacing. Weld tabs on the frame to screw to the bench top and wall to secure it. You will want a small commercial fume hood for your solvent handling area. Don’t forget good ventilation in your lab space, filtered incoming air is also a nice touch. You may want a few air ducts that can be pulled down over vacuum pump exhausets. Glassware washing areas should also include good ventalation, waste bottles and cans should be employed as to not pollute. Rubber mats and a good glassware drying rack are essental. It is also nice to have an R.O water faucet on the rinse sink. Your glassware storage should be somewhere between your washing area and lab bench.lastly is a solvent recycling area, if you can segregate your waste bottles some can be recycled. It is every cost effective and eco friendly to reuse your solvents. With these in mind begin to sketch your workspace.