Boracare cannot be used in a fogger as it is too thick of a product and will clog nozzles. Foggers cannot penetrate into the wood to contact the termites so is not a recommended treatment method for termites.
For furniture your options are limited for treatment. If the wood is in its all natural raw state without any stains or finishes on it you can use a product like Boracare. Boracare will absorb all the way into the wood and eliminate Wood Destroying Fungus, termites and other wood-destroying insects that is effecting it and last for the life of the wood. It does not stain the wood or leave behind any visible residue, but becomes one with the wood and any insect that ingests it dies.
If the furniture has a finish on it, you would either have to drill holes throughout it and inject something like the Boracare or a foam, or the option most go with, hire a
The water that Boracare is mixed with will eventually evaporate, and it will dry. You could also wash the product off the tarp and reuse it.
Boracare is too thick of a product to be used in any type of fogger. It can be foamed into wall voids or sprayed or painted directly onto raw untreated wood only. If you cannot directly access the wood that needs to be treated, foaming is the best solution, although it will only penetrate into wood that it is directly contacting.