Although mosquito repellents are effective in keeping disease-carrying insects at bay, their impact on humans, particularly their lung health is becoming a matter of concern. Dr Sanggita Checker - A chest physician working at Mumbai’s Wockhardt Hospitals informs that “prolonged exposure to the fumes emitted by coils and liquid repellents may pose risks due to inhalation of chemicals such as formaldehyde and volatile organic compounds (VOCs).” 

The widespread use of coils and liquid repellents in Indian households is notable. Some of them switch it on for extended periods and remain in close proximity to the emitted fumes. Unfortunately, this leads to unwitting consumption of the fumes, which can result in chronic lung diseases like vasculitis (discussed ahead).