Mosquito coils are commonly used to provide protection from mosquitoes in India. However, when these coils are used for a long time indoors, they pollute the air in the area where they are kept. Babies should not be exposed to the fumes of these coils as it may lead to headaches, coughs, nausea and dizziness. The insecticide products used are generally considered safe, but it's the particulate matter produced from a smouldering mosquito coil that poses the greatest risk. It is of utmost importance that one does not light incense-sticks or dhoops at all, when kids are around, as smoke from any source has a harmful effect on the lungs. 2. One should only burn agarbattis when absolutely essential, and that too in an area which has proper ventilation.