For a business, it should be permanent on a monthly basis. For a homeowner, it depends on history of pests and tolerance. Some live with no service and some don't ever want to see a spider, so it's an individual decision.
Frigidaire Professional ranges will last long, but GE has a better warranty so they will possibly last longer.
3 hours
Chelmno The extermination camp operated from December 1941 till March 1943.
Antarctica should last as long as the earth lasts.
Should last about 30 minutez
It should last five to six minutes.
The instructions on the label on the bottle or box should give you a good indication. For an answer more specific to you, you should consult a medical professional. After all, there are two possible meanings to your question - how long does a dose last, and how long does the bottle last. But both answers could be derived from the label. (Note: It the bottle lasts longer if there are no artificially created reasons for needing to use it more, such as the ingestion of delta-9 tetrahydrocannabinol.)
A properly configured sealed terrarium should last indefinitely.
How ever long you want it to last.
as long as you can keep it
As long as I say it does!
how long will a minimum order of oil last