Are electric mosquito-repellent pads harmful to humans?
Apr 28, 2022
Source: Cainiu Health
Dr. Guo Xiheng
Introduction
Electric mosquito-repellent pads predominantly contain pyrethroid insecticides. These are relatively mild insecticides that pose minimal risk to humans. However, even though they can effectively kill mosquitoes, they may still cause slight harm to the human body—particularly to children and pregnant women, for whom their use is not recommended. Using mosquito nets is a safer alternative. Additionally, electric mosquito-repellent pads often contain fragrances, preservatives, and other additives.
Recently, rising temperatures have led to an increase in mosquito activity. When mosquitoes appear, they disrupt our sleep— their persistent buzzing and biting can be extremely irritating. So, are electric mosquito-repellent pads harmful to humans?
Are electric mosquito-repellent pads harmful to humans?
Most electric mosquito-repellent pads contain pyrethroid-based insecticides. Pyrethroids are relatively mild insecticides with minimal toxicity to humans. Nevertheless, even though they effectively kill mosquitoes, they may still cause minor adverse effects on the human body. Children and pregnant women, in particular, should avoid using them; mosquito nets are a safer alternative. Additionally, these pads often contain added fragrances, preservatives, and other ingredients. When heated or burned, such additives may trigger asthma attacks and potentially generate carcinogenic substances. Therefore, use of these products should be approached with caution.
The primary components of traditional mosquito coils include organophosphates, pyrethroids, wood flour, and binders. Among these, organophosphates are the most toxic—compounds like dichlorvos (DDVP) are common examples found in many insecticides. In contrast, pyrethroids exhibit much lower toxicity to humans, with no known carcinogenic or teratogenic effects. Examples include prallethrin and lambda-cyhalothrin—the actual active mosquito-killing ingredients in mosquito coils, present at concentrations below 1%. Numerous scientific studies indicate that the dose of pyrethroids released by mosquito coils is well within safe limits for human exposure.
When using electric mosquito-repellent liquids, poor indoor ventilation may lead to severe allergic reactions, including sore throat, nasal congestion, and headache. We hope this information proves helpful!
