How long does it take for insecticide to enter the house after spraying

Immediately after spraying, the person should leave the room for at least a quarter of an hour. After half an hour of use, the window should be opened for ventilation to reduce the residue of toxic and harmful substances.

Steps for the use of pesticides

1. Read the product label and manual carefully before use;

2. When spraying insecticidal chemical sprays, wear gloves, masks, etc., and pay attention to personal protection;

3. Wash your hands immediately after spraying and leave the scene quickly;

4. Open the window for ventilation after half an hour of use to reduce the residue of toxic and harmful substances;

5. In order to avoid secondary pollution, it is best to ensure that the package is well sealed, placed in a ventilated and safe place, not exposed to the sun, and avoid children's contact, away from food and water sources.

The effects of pesticides on the human body

At present, most of the aerosol insecticides commonly used in households belong to pyrethroids. Pyrethroids have low toxicity to the human body, but they can be poisoned by long-term absorption or mistaken ingestion, which mainly affects the conduction of nerve axons, and symptoms such as flushing, swelling, pain, rash, nausea and vomiting, abdominal pain, diarrhea, headache, dizziness, and dyspnea at the contact site appear.

In addition, some insecticidal aerosols, insecticidal emulsifiable concentrates, etc., also use highly toxic benzene and benzene compounds as solvents, and long-term human exposure will cause damage to the hematopoietic system.

The above content reference:

People's Daily Online-How to protect oneself by spraying insecticides?

People's Daily Online - After spraying pesticides, open the window in half an hour.

When spraying insecticides indoors, it should generally be closed for about half an hour, and after the insecticidal effect is fully exerted, open the doors and windows for ventilation (under the condition of ensuring that the screen doors and screens are intact), and only enter the room after the smell of indoor insecticides has dissipated.

As for the specific time, it depends on the ventilation situation at that time. If the ventilation is good, it may take a few minutes; If the ventilation is poor, such as in the basement, it will take longer, and if necessary, the ventilation can be mechanically strengthened.

In order to ensure human health, before spraying insecticide, wear long sleeves and masks, and open the window for ventilation 30 minutes after spraying insecticide, depending on the speed of the wind at that time.

Spraying insecticides indoors, generally need to be closed for 30 minutes to fully ensure that the mosquitoes are killed, and then open the windows for ventilation until the smell of indoor insecticides is exhausted, and then Wang Lu can be called into the room, and the ventilation time is determined according to the ventilation conditions at that time.

Before spraying insecticides, you need to seal all the chain fiber food, water sources, and cupboards in the room, and wear long sleeves, wear masks, do a good job of poisoning protection, avoid high temperature and strong collision when spraying insecticides, and some insecticides are flammable and explosive, do not spray on the fire source, so as to avoid danger.

The main principle of insecticide to kill insects: from the mouth, body wall, and valve of the insect into the insect's body, thereby interfering with the normal physiological activities of the insect, resulting in death or interfering with the normal nervous system of the insect, resulting in the insect's nervous system flocculating and causing its death.

How long it takes for an insecticide to enter a room after spraying depends on a variety of factors, including the type of insecticide, the ventilation of the room, and the wind speed of the day.

Generally speaking, if you are using a spray-type insecticide, you can close the doors and windows for about half an hour after spraying the insecticide to allow the insecticide to fully function. Yuchi then opens the doors and windows for ventilation for 2-3 hours to reduce the concentration of pesticides in the room, so that you can enter the room.

It should be noted that if there is no wind on the day and the indoor ventilation is poor, you may need to wait for about 6 hours for Zheng Xiao to allow the insecticide to fully dissipate before entering the room.

In addition, different types of pesticides may have different effects on the human body, so when using insecticides, it is best to follow the instructions and precautions for use. At the same time, it is best to use insecticides when no one is indoors to avoid adverse effects on the human body.