Clan labs are usually very mobile in nature. The "Cook" or chemist will manufacture the illicit drugs and then immediately "Box" the lab for storage, shipment or hiding. The constant moving of a laboratory helps avoid the loss of laboratory equipment due to seizure. Boxed labs are often kept in storage lockers, garages, trailers, vehicles, etc.
This is a clan lab that is in the process of "cooking" (synthesis or blending of chemical ingredients). This is the most dangerous stage because some of the chemicals used can be unstable and highly reactive with other elements. During the "cook" blending or synthesis toxic gasses are released, a fire or an explosion could occur.
This clan lab has been just set up to begin a cook but has not started the process yet. It can also be a clan lab that has just completed a cook and has not been dismantled.
A clan lab in this stage should not be considered less dangerous than an operational laboratory.
You may find chemicals not stored or out of their original containers, contaminated glassware, chemical/acid spills and chemical residue that might ignite from friction/ heat, exposure to air or water.

"Boxed Laboratory"
The boxed laboratory is one that has been dismantled and put away. Again, this is still a dangerous situation. You may find chemicals not stored or out of their original containers, contaminated glassware, chemical/acid spills and chemical residue that might ignite from friction/ heat, exposure to air or water.