An incredible 900,000 types of insects are known to exist. Equally incredible is the number of insect repellents available. Here is what you should know: 1. The most thoroughly studied insect repellent is DEET. No repellent bears this name; it is the active ingredient in most products. Don’t be alarmed by its chemical formula, N,N-diethyl-m-toluamide [...]
May 23, 2008
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