At present, mosquito repellent incense on the market, there are two kinds of non-toxic and toxic. Fish order mixed, good and bad difficult to distinguish. The following identification methods may help you.
How to identify toxic and non-toxic mosquito repellent incense
1. Look at the appearance: the safe mosquito repellent incense has fine processing, uniform color, strong folding force, and the ignition time is about 7-8 hours. If the surface of mosquito repellent incense is rough, the structure is loose, and the crystal with large particle impurities (DDT) is fine and easy to break, or if it can not reach the ignition time, it can be identified as toxic mosquito repellent incense.
2. Smell: Chinese herbal medicine, pyrethrum mosquito repellent incense, smoke is not thick, people can smell a natural fragrance, no pungent, dizzy feeling. DDT mosquito repellent incense in the process of opening the package and lighting, there is a smell of camphor pills, people will feel dizzy after a long time.
3. From the point of ignition: match the mosquito repellent incense, pyrethrum mosquito repellent incense only has yellow flame and bluish white smoke, while toxic mosquito repellent incense has green flame and black smoke when burning.
4. According to the ash of mosquito repellent incense, the ash of pyrethrum mosquito repellent incense is white gray, while the ash of toxic mosquito repellent incense is black.
5. From the analysis of mosquito control effect: pyrethrum mosquito repellent incense has obvious toxic effect on mosquitoes, it can inhibit and anesthetize mosquito nerves, and it is not easy to see mosquitoes flying randomly after being ignited; however, toxic mosquito repellent incense can only excite mosquitoes, and mosquitoes will fly and collide randomly after being ignited, and its efficacy is not as good as pyrethrum mosquito repellent incense.
When purchasing mosquito repellent incense, we should pay attention to the following aspects:
1. Look at the box. The box should have factory name, address, production date, expiration date, ingredients, executive standard, pesticide registration certificate, etc. On the outer package of mosquito repellent incense, there should be factory address, factory name, product standard number, pesticide temporary registration certificate number and pesticide production approval document number. The pesticide standard word of mosquito repellent products usually begins with "HNP". When purchasing, it is necessary to see whether there is registration with the Ministry of agriculture.
2. Look at the appearance. Take the mosquito repellent incense as an example, the surface roughness indicates that the quality is not good. For the electric mosquito repellent incense sheet and liquid mosquito repellent incense, the plastic parts shall not have obvious warping deformation, crack, scratch, burr, etc., and the fasteners shall not be loose.
3. Look at the production date. The closer the production date is, the better the mosquito repellent effect will be.
In terms of appearance, the qualified mosquito repellent incense has fine processing, uniform color, strong folding resistance, and the ignition time is about 7-8 hours; while the inferior mosquito repellent incense has rough surface, loose inner substance, easy to break and extinguish. The qualified mosquito repellent incense only has yellow flame and bluish white smoke after being ignited, while the toxic mosquito repellent incense has green flame and black smoke. When the qualified mosquito repellent incense is ignited, the smoke will fade, the smell is not strong, and there is a natural essence; when the poisonous mosquito repellent incense is opened and ignited, it will have a pungent and dizzy feeling, and if you smell it for a long time, there will be adverse reactions such as palpitation and chest tightness. Qualified mosquito repellent incense ash should be white or gray, while toxic mosquito repellent incense ash should be black.
If it is impossible to identify whether mosquito repellent incense is safe and qualified, it should be stopped immediately when it emits strong odor after being ignited. In addition, for the sake of safety, it is better not to put the mosquito repellent incense near the head to reduce the inhalation of smoke.
When buying mosquito repellent incense, it is better to see whether it is produced by large manufacturers. It is better to buy mosquito repellent incense that is green and suitable for children. However, it is better to use mosquito repellent incense as little as possible. The key is to prevent the entry of mosquitoes.
Usage
1. Half an hour before going to bed is a good time to use mosquito repellent incense. When using, the doors and windows should be closed, people and pets should leave.
2. Mosquito repellent incense is best used outdoors, such as around the home, at the door or in an area with good ventilation. In the evening and before dark, mosquito repellent incense was the best.
3. For the sake of safety, it is better not to put the mosquito repellent incense near the head to reduce the inhalation of smoke.
4. Users should not light mosquito repellent incense for a short time after applying toilet water, because the alcohol content of the toilet water is high, which is easy to cause fire and burn.
It is best to use safe and natural methods to repel mosquitoes in summer, such as using mosquito nets or screen windows to keep mosquitoes away, or to place boxes of cool oil and balm in the bedroom.
First aid for poisoning
1. If there is no adverse reaction. Improper use, if excessive inhalation, should be moved to the air circulation.
2. If you eat it by mistake, drink a lot of boiled water and go to the hospital with this mosquito repellent incense package.
3. In case of eye contact, wash eyelids with plenty of water, and seek medical advice in case of serious cases.
