ThermaCELL mosquito repellent refill R-4 - Value Pack

ThermaCELL mosquito repellent refill R-4 - Value Pack www.amazon.com ThermaCELL mosquito repellent works to protect you from errors by the repulsive Allethrin. Allethrin, a synthetic analog (chemical copy) of a natural insecticide, pyrethrin, found in the pyrethrum flower chrysanthemum family. Refills can be stored for long periods and should not be used all at once. When finished, turn off and restart it when ready. It should be stored in a dry, dark place when the time between applications is more than a week. Carpetmust be replaced when you change from blue to white.