How long does it take to ventilate after spraying the insecticide

<> about 10 minutes after spraying insecticide, the insects will die, if you want to kill the insects well, you must close the doors and windows for about half an hour, and then open the doors and windows for ventilation. Generally, when the ventilation is good, the wind can be felt indoors, so that the insecticide in the house can be dissipated after 2-3 hours of ventilation. If there is no wind in the weather where the insecticide is sprayed, it will be difficult for the insecticide in the house to dissipate, and it will take about 6 hours to enter the house.

1. How long does it take to ventilate after spraying the insecticide

1. Generally, after spraying insecticides, the insects will begin to die one after another about 10 minutes, if you want to have a better insecticidal effect, you must close the doors and windows for about half an hour, and then open the doors and windows for ventilation.

2. If the ventilation is good, the wind can be clearly felt by standing in the ventilation and convection of the house, and the insecticide in the house can be dissipated after about 2-3 hours of ventilation, and then people can enter the house. However, it is recommended to let adults into the house first, and if you can clearly feel the smell of the insecticide, let the elderly, children, and pregnant women enter the house.

3. If there is no wind on the day of spraying insecticide, it will be difficult for the insecticide in the house to dissipate, and it will take about 6 hours to enter the house.

Second, how to disperse the smell of insecticide sprayed too much

1. First open the doors and windows to allow indoor and outdoor air circulation, which can help the insecticide to disperse.

2. You can also take out the electric fans at home, which can create convection air, increase the circulation of indoor and outdoor air, and speed up the odor of insecticides.

3. If the smell of insecticide is still there for a day or two, you can put an activated carbon bag in the corner of your home, which can adsorb harmful gases.

4. Put a stove in the middle of the room, which can increase the indoor temperature, reduce the density of indoor gas, and accelerate the escape of insecticide gases contained in the room.

After spraying the insecticide, it is recommended to close the doors and windows for about half an hour and wait for the smell of the insecticide to dissipate before entering the room. If the ventilation is good, it is recommended to ventilate for about 2-3 hours, and then enter the room when the smell of the insecticide is clearly felt.

Please note that pesticides are harmful to humans, and long-term exposure can cause neurological symptoms, including dizziness, headaches, paresthesias, and even nerve paralysis. Therefore, it is recommended to wear a mask and wear clothing that can cover the insecticide when spraying insecticides to prevent adverse reactions caused by contact between the face and **.

No. You need to wait half an hour for the air to dissipate before entering.

It is recommended that it is best to enter after 3 hours of spraying, and open the window and door for ventilation for at least one hour after entering. One is to ensure that there is no harm to the human body, and the other is to ensure that the effect of pesticides can be fully exerted.

Insecticides are generally in the fog state. In the process of spraying volatilization, it slowly combines with the floating matter in the air, and will not disperse for a long time, at this time, if people breathe indoors, they will inhale the air containing insecticides, which is very bad for the body, so they can not go in immediately after spraying insecticides.

Precautions for the use of pesticides.

1. When buying insecticides, you should first put them in a place where children can't touch them (for fear that children will eat them by mistake, eyes and other harmful places).

2. After use, put it first, pay attention to ventilation, wash your hands immediately after use, and do not spray at people or food.

3. Do not hit, damage, or burn, put it away from the source of the fire, and do not put it into the fire. Do not use pesticides in households with pregnant women.

4. There are all kinds of insecticides on the market, and you should pay attention to distinguish them when buying them (some are not suitable for bedrooms, for example: mosquito coils are also insecticides).

This is a sign of mild poisoning, and you may be a little allergic to pesticides. In the future, use a little more insecticide, increase the ventilation time, and do not spray too close to the bed. The problem won't be too big to harm the brain. If you feel unwell for a long time, it is recommended to go to the hospital.

After waiting all day, just open the door and wait.

Ventilate before entering the door.

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.

The reason why it takes so long to enter after spraying is to ensure that there is no harm to the human body, and on the other hand, to ensure that the effect of the insecticide can be fully exerted.

Description: The pesticides sold on the market are all qualified products that have been inspected by the relevant departments, as long as they are used correctly in accordance with the requirements of the instructions, they are generally very safe for the human body and the environment, so there is no need to worry too much. Some people go inside 30 minutes after spraying, and it doesn't make a difference.

However, for pregnant women, in order to ensure the absolute safety of the fetus, it is recommended to wait a little longer before entering the room.

About 20 minutes. The impact and harm of indoor insecticides in daily life on the human body is not very large, so it is not necessary to leave when spraying insecticides indoors, but if you are worried that insecticides have an adverse effect on the human body, usually close the door at least 20 minutes after spraying and then go in, because during the 20 minutes the insects may have been eliminated by the insecticides, and then open the windows and doors to let the insecticides fully disperse, and the impact on the human body may be smaller.

Precautions for the use of pesticides.

1. Try to use pesticides sparingly, and try not to use them when they are not in use. When using spray pesticides, it's a good idea to wear a mask. Minimize contact with pesticides, such as not staying in the house where the pesticide is applied, leaving immediately after application, and opening doors and windows to fully ventilate and exhaust before entering.

2. Do not spray pesticides directly at people and pets. Avoid exposure of infants, children, pregnant women and people with specific allergies to pesticides to avoid adverse effects. Do not spray pesticides on food, utensils, furniture and bedding when using pesticides.

Keep pesticides safe and out of reach of small children.

3. Bathe and change clothes after applying insecticides and insecticidal emulsifiable concentrates.

The above content refers to People's Daily Online - open the window half an hour after spraying pesticides.

After spraying insecticides indoors, they should generally be sealed for 30 minutes, and after the insecticidal effect is fully exerted, open the windows for ventilation until the smell of indoor insecticides dissipates before entering. As for the specific time, it depends on the ventilation situation at the time. If it is well ventilated, a few minutes is sufficient.

It takes about 3 hours after the spray to get indoors.

Then after entering, open the doors and windows for at least an hour. In this way, we can ensure that the mosquito repellent in it can be completely volatilized and there is no harm to our human body. Because the insecticide is a state of matter, it will combine with some things in the air after the spraying fails, if we go directly at this time, it will be bad for our health, so the insecticide cannot enter the house immediately after spraying.

Whether it's spraying mosquito repellent inside or outside the house, no one can be around. Because it takes 6 hours for the medicine to disperse inside, for some of us who go to work, we can kill mosquitoes at home before going to work, and we can go in after work. If you are killing mosquitoes outdoors, it is best to choose the morning, because there are fewer people at this time.

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

What are the methods of mosquito control?

1. Anti-mosquito curtain.

If we don't want mosquitoes in the room, we can install a curtain on the door, so that mosquitoes can be stopped in the house.

2. Mosquito repellent.

Now there is a good mosquito repellent that can be used by pregnant women and children. It has no taste and no fragrance, but it has a more lethal effect on mosquitoes, and mosquitoes dare not come when they smell it.

3. Mosquito repellent.

There is a mosquito repellent that does not need to be lit and does not require electricity. Put it in the room on the limbs can directly play a role in repelling mosquitoes, and it occupies a relatively small area, a small bottle can play a good role.

The ventilation time after the use of insecticidal aerosol is related to the size of the room, the content and concentration of the active ingredient contained in the insecticide, the relative air circulation of the space and other factors. Note that insecticidal aerosol is a pressure vessel, a flammable and explosive object, and should not be placed in an environment of more than 50 meters, and should be placed in a cool place.

1. How much time do you need to ventilate after using an insecticidal aerosol

Because the insecticide contains some chemical components that are harmful to the human body, when inhaled by the respiratory tract, it is easy to cause inflammation in the airway, so it is necessary to do a good job of ventilation after using the insecticidal aerosol, and the ventilation time after the use of the insecticidal aerosol is related to the size of the room, the content and concentration of the active ingredients contained in the insecticide, the relative air circulation of the space and other factors. If the insecticidal aerosol is widely used, the room is sprayed, and the ventilation doors and windows are relatively small, then it needs to be ventilated for about 1-2 days, so as not to cause harm to the human body, and when using insecticidal aerosols, it is necessary to do a good job of protection, such as wearing masks, wearing long-sleeved clothing, etc.

2. How much insecticidal aerosol needs to be sprayed in a room

1. For the elimination of pests in the room, you can spray it in all directions of the room at will to make it full of medicine mist, and open the doors and windows for ventilation after a period of time.

2. For the elimination of cockroaches and other reptiles, it is necessary to spray the aerosol evenly in their infested, staying, and perching places, and spray it for about 1-3 seconds per square meter.

3. For the killing of mosquitoes and flies and other flying insects, it can be sprayed to its activity space, generally spraying every 10 square meters for about 8-10 seconds.

3. Precautions for insecticidal aerosols

1. It is a pressure vessel, which is flammable, and should not be exposed to direct sunlight, or placed in an environment of more than 50 meters, and should be placed in a cool place.

2. The insecticidal aerosol contains toxic chemical ingredients, and it is forbidden for children to use or play, and it is forbidden to spray on people, animals, food, etc., and it can be cleaned with soap and water when the liquid is stained.

3. It is forbidden to spray insecticidal aerosols upside down, to puncture the tank, to spray it at the eyes, and to throw the jar into the fire, so as not to **.

4. Any insecticide has a certain harm to the human body, and should not be used for a long time, if it is exposed to it for a long time, it will cause neurotoxicity, causing dizziness, headache and other symptoms.

Spraying with insecticide requires ventilation for 2 hours. Insecticides are able to kill mosquitoes, but they are also harmful to humans. Therefore, after spraying insecticide, the window should be opened for ventilation after half an hour, and the ventilation should be at least 2 hours until the smell of the insecticide dissipates before entering the room.

When spraying pesticides, it is recommended to wear a mask and clothing that can cover them to prevent exposure to pesticides.

Insecticides: Insecticides include organic insecticides, inorganic insecticides, plant-based insecticides, mineral oil insecticides, and microbial insecticides. Insecticides can only kill insects, not prevent diseases.

Pesticides play an extremely important role in increasing agricultural production and solving human food problems, and are closely related to the reduction or even extinction of natural enemies of pests and other beneficial organisms. Before spraying pesticides, all food, water, cupboards must be sealed, preferably after people have eaten to avoid contamination, and pots must be kept out of the reach of children.

Yes. In the case of no ventilation, the toxicity of indoor insecticides will take about 6 hours to dissipate, if the insecticide is sprayed less, and keep the room ventilated, it can be dissipated in about 2 hours, if it takes longer to spray more, it is recommended to pay attention to controlling the dose of insecticides when spraying insecticides, do not spray too much, and pay attention to room ventilation. <

After spraying the insecticide, it can be volatilized without ventilation. In the case of no ventilation, the toxicity of indoor insecticides will take about 6 hours to dissipate, if the insecticide is sprayed less, and keep the room ventilated, it can be dissipated in about 2 hours, if it takes longer to spray more, it is recommended to pay attention to controlling the dose of insecticides when spraying insecticides, do not spray too much, and pay attention to room ventilation.