GLOBE brand Mosquito Coil is DDT free and has more than 8 hours burning time in natural condition. Produced as per 2.2 (P-3) special specification of BDS 1089 : 1984 by Globe Insecticides Ltd., Dhaka, Bangladesh with technical assistance of Earth Chemical Co. Ltd., Kobe, Japan an associate company of Otsuka Group of Japan. The active ingredient "d-Allethrin" used in our coil is a world famous insecticides as one of the safest Mosquito repellent produced by Sumitomo Chemical Co. Ltd., Japan.