The Bug Bam Mosquito Grid is THE ONLY scientifically proven, non toxic, all naturally formulated (active ingredients) area repellent that does not use smoke, flames, butane, fans, sprays, liquids, power or batteries of any kind! The Mosquito Grid has been tested and proven to repel for up to 100 hours in an area of up to 300 square feet! Forget lotions, candles, sprays and other GIMMICKS to keep bugs away. Hang this grid on your back porch, umbrella, tent or picnic area or literally anywhere. Each Mosquito Grid comes in a vapor proof zip-lock bag. The bag is re-sealable and will keep the product reusable for up to 2-years if unopened. In between use, just seal the product back in the original zip-lock bag until you’re ready to use it again. Bug Bam Products LLC warrants that this product qualifies for exemption from EPA registration under the Federal Insecticide, Fungicide and Rodenticide Act.