The choose and buy of mosquito-repellent incense

1, buy quality assured mosquito-repellent incense.See box, it is best to use "electronic mosquito swatter" safe non-toxic side effects such as mosquito products, avoid mosquito-repellent incense poisoning.If use mosquito-repellent incense, pesticides, ward off agent, etc., should choose low toxic products as far as possible, to minimize harm.And shall have the producer name and address on the box, production date, validity, and composition, executive standard, pesticide registration certificate, etc., which is the guarantee.

2, to judge from appearance.In the case of mosquito coils, surface rough showed that the quality is bad.For electric mat and liquid mosquito-repellent incense, the plastic parts should not have obvious buckling deformation, cracks, scratches, burrs, etc., various fasteners must not be loose.See the production date.The nearer to the date of production, drive midge effect is better.

3, judging from time length.From the point of appearance, qualified mosquito-repellent incense processing fine, colour and lustre is uniform, bending force, around the time of 7 ~ 8 hours;Inferior mosquito-repellent incense, surface rough, loose, easy to break and go out.Qualified mosquito-repellent incense when lit only yellow flame and bluish white smoke, and poisonous mosquito coil incense is green flame and smoke.Light elimination after qualified lit mosquito-repellent incense, smoke, smell is not strong, and natural pure incense;Poisonous mosquito coils are in the process of open and light, there is a pungent, dizziness, wen jiu can also have adverse reactions such as palpitations, chest distress.Mosquito coil manufacturer incense smell is very strong, but also is harmful to human body, we need careful consideration mosquito-repellent incense when the choose and buy.Qualified mosquito-repellent incense ash should be white or gray, and poisonous mosquito coil incense ash is dark.If unable to identify whether the mosquito-repellent incense safety qualified, and after lit mosquito-repellent incense when issued a strong odor, also should immediately stop using it.