how long does liquid, co2 extract oil, last if kept in bottle at room temperature?

Almost indefinitely if kept at room temp.

There are a few defermining factors about this depending on strain, etc. Best to call/ask emplyees since they know all the specifics.

I think they taste funny after a while.... But they still work.

I am not the expert on that nor will I attempt to,look that answer up as there could be misinformation on the web. All employees there are well educated about how to use these substances and can tell you exactly what to do. You will not find any of that info on their web site I would talk to the experts face to face. .if you have a license you have to go talk to the experts face to face. They don't give random,info about the use of substances over the phone. The experts are behind special counters helping folks they don't take any calls. Don't bother calling. You,have license then anyone can go and talk to the experts not the secretaries who answer the phone and check you in . On order to talk to the experts you will need to pass your license to them and once they know you are a patient will buzz you in. Its highly secure with cameras everywhere. If you don't have license you will not be permitted to enter.

I've had it for a while sitting and its not gone bad but I would contact the dispensary for actual facts on the subject :)

Call dispensery and find out

Good question