With the arrival of summer, the weather is increasingly hot, mosquito coils are also included in a wide range of people's shopping list. But now on the market because of the different mosquito coils market regulators and manufacturers, the quality varies greatly, then how should we choose and to identify what is good or bad mosquito, the identification method described below may be helpful to you.
First, look at the appearance: Security mosquito processing fine, uniform color, pull off strong, ignition time in about 7-8 hours. If the mosquito surface roughness, loose structure, a large particulate impurities (DDT) of crystal takes fine, easily broken, or reach the ignition time, halfway off, a toxic mosquito discernible.
Second, the smell flavor: herbs, pyrethrum mosquito coils ignited after smoke is not strong, people can smell a natural fragrance, no pungent, feeling dizzy. The DDT mosquito in the process of unpacking and ignition, with shares of mothballs smell, the smell for a long time people will feel dizzy.
Third, from ignition to identify: mosquito coils ignited with a match, pyrethrum mosquito coils only yellow flames and green white smoke, and toxic when burned mosquito coils in green flames and black smoke.
Fourth, from the mosquito to identify gray: gray mosquito pyrethrum after ignition was white-gray, ash and poisonous mosquito is black.
Fifth, the mosquito effect analysis: pyrethrum mosquito coils ignited after apparent toxic effects on mosquitoes, which inhibit nerve and anesthesia mosquitoes, lit difficult to see mosquitoes flying; and toxic mosquito mosquitoes just excited to play the role, lit mosquitoes flying rattling phenomenon, efficacy is better pyrethrum mosquito coils.
Tips: mosquito, after all, is irritating fumes, the choice may try to use a new type of electric mosquito liquid, mosquito coils and other products with less smoke, of course, pay attention to daily life, clean, maintain good sanitary conditions, prevent mosquito breeding is The most effective mosquito control methods.