Two weeks of freezing temps is what I've seen recommended. Like, if you get second-hand clothing that you cannot wash in hot water, and want to make sure you don't bring the pests into your house, wrap it in plastic and put in your freezer for at least a couple weeks. Might be trickier to do with a household's worth of furnishing, though.
Using liquid nitrogen might also be effective, but I haven't researched it much.
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Date: 2009-12-10 04:13 pm (UTC)Using liquid nitrogen might also be effective, but I haven't researched it much.