What is a draft? Ventilation of premises. The window opposite the door: how not to get sick

Any living organisms need fresh air. Anyone can notice that in a stuffy room the working capacity drops sharply, concentration worsens, the head starts to hurt. In a word, the flow of air is necessary. But under certain conditions, another danger arises. So, what is a draft?

About airing

Long stay in the room without access to fresh air negatively affects a person's well-being. And it's not a lack of oxygen - quite the contrary. The fact is that with the breath and from the human skin, a large amount of substances are released into the air, first of all it is carbon dioxide. With an increase in its concentration, fatigue appears, a headache. If you do not get access to fresh air, the symptoms will only worsen.

That's why airing the premises is so important. It is necessary to spend it all year round 2-3 times a day. In the morning it will help to renew the air, stagnant for the night hours, and in the evening - it is better to fall asleep. Here only it needs to be done differently depending on the time of the year and the weather. In winter it is better to conduct intensive short airing. Leaving the room, you need to open the window and close the door for 3-4 minutes. This method is not suitable if there are plants sensitive to low temperature on the windowsill, in which case they become ill and may die. Well, for a long time, the open window gives a relatively small influx of air, but much more vystuzhaet room. In addition, this style of airing can provoke such a phenomenon as drafts. And then the desire for health can turn into unpleasant diseases.

What is a draft?

Sitting in a room with an open window and a door, those who are close to the last, for certain not once noticed an unpleasant chill walking on legs. He makes you shiver and drink tea more often. This is the draft - a fast and, as a rule, a cold flow of air between its two sources. Sometimes it can even not be noticed, if, for example, get carried away by work. But he will still insidiously know about local hypothermia and, possibly, subsequent diseases. That's why you need to provide the house with good thermal insulation, carefully choose a place to sleep, especially for young children, and also to ensure that the cold air flow, for example from the air conditioner, is not directed to the legs, neck, trunk during work.

When does it arise?

According to the laws of physics, air moves faster than in a narrower space it turns out. When passing through an open window into the room, its speed increases. And the narrower the gap, the faster it will move - usually the most intense it reaches right above the floor and slightly higher. If the windows are closed, but do not fit well to the frame, these gaps will still be inflated. And this can be aggravated by some other factors. Therefore, the first rule of ventilation - it is better to open the window than the window. In the first case, the air will refresh faster with a smaller drop in room temperature. And the second, according to the presence of other factors, is the following: if the window is open, the door must be closed. This rule is valid and vice versa. It is especially important if the window is opposite the door. In the event that they are open at the same time, and there is a person on the way for a long time to stay, most likely, he will subsequently fall ill. By the way, the same effect can be obtained, sitting under the air conditioning. In any case, it is not surprising that in many countries, even warm ones, are so cautious about drafts.

What is dangerous?

So now it's clear what a draft is, but why is everyone so afraid of it? The fact is that it provokes a local decrease in temperature and, accordingly, local immunity. But it is dangerous not only for people. Animals and plants also suffer from hypothermia without good thermal insulation. And when repairing it is better not to forget about what a draft is and how cunning it is.

For people and animals

For people, local hypothermia is fraught primarily with diseases such as colds, myositis or muscle spasm, as well as neuralgia. The people say so and "blew it". Depending on where the person has a weak spot, a draft can "hit" the ears and nose, kidneys, pelvic organs, muscles, etc. A decrease in immunity can trigger an exacerbation of chronic diseases, for example herpes. So underestimate the danger is not necessary, even a common cold with insufficient treatment can cause complications.

Animals are also very sensitive to air currents. If there is a draft in the room, dogs, cats, birds, etc., may become ill if the rest places are in the wrong position. This is especially true of the latter, as well as short-haired pets and those who are deprived of hair. Also, drafts are especially dangerous for those who have immunity reduced due to natural causes - for very young or old animals. Therefore, you need to make sure that the cage or the stove is raised at least a dozen centimeters above the floor - this will reduce the danger.

For plants

Most of the home colors are very fond of fresh air. This is the same important factor as temperature, lighting, watering. But in this case also the absolute majority can not stand drafts, instantly dropping leaves and dying. The fact is that the high humidity around the flowers, coupled with the cold flow of air gives dampness, which is especially dangerous for young shoots and shoots. To prevent such problems, you can pick up special greenhouses, which are placed on the windowsill. This will also solve the problem of plant protection during short-term ventilation.

For repair

For many technological processes that occur during the renovation of the interior of the apartment, it is necessary that there was no draft in the room. This applies primarily to the wallpapering, because because of the flow of cold air and uneven drying of the glue, they can begin to move away from the walls, which will bring down several hours of work. That is why, after this stage is completed, the room is locked for about 24 hours, it can not be ventilated.

Measures to prevent

First of all, you need to pay attention to the thermal insulation of the room, if it comes to the house. If possible, get rid of old wooden cracked windows with slots, put new double-glazed windows. If you still have any problems, there are special pads on the windowsill that protect against air currents. Similar exist for doors, if they close loosely.

Next, you can change the floor covering to a carpet or something similar. This additionally insulates the room, and also removes the cracks under the door. And although care for such a coating is more laborious, the health is worth it.

You should also pay attention to the air conditioner, if there is one. It should be located so that the air flow from it is not directed at people. Ideal location - in the hallway or corridor, where there is always no one.

Another point is choosing the right clothes. Where there is no way to change the location of the table, for example, standing on the very draft, you need to be warmed. It is worth paying attention to the most vulnerable parts of the body - legs and feet. Their hypothermia is fraught with colds, sinusitis and even toothache. In second place, especially for women, is the lower back. It is necessary to protect more neck, shoulders and ears, their hypothermia also leads to unpleasant consequences. And, of course, it makes sense to pay attention to your immunity - to carry out vitamin therapy and hardening.

Finally, the golden rule: if the window is open, the door must be closed. And vice versa.

Errors

Open windows and doors opposite to them, contrary to popular belief, do not provoke the appearance of drafts in themselves. On the contrary - the windows and narrow slots are much more dangerous. Therefore, the so-called winter airing on modern windows does not allow you to safely update the air, if you stay in the room and do not close the door. Moreover, the draft speed will even increase. So a brief intensive airing - especially during the cold season - is an ideal option.

Do not open the windows - it's also an error. And it's not just about potential carbon dioxide poisoning. The fact is that stagnant air in the room is the ideal medium for transmission of diseases by airborne droplets. Without a long airing, one chilled and come to work a day's employee will infect everyone who is next to him. Therefore, even in the off-season 2-3 times a day for a couple of minutes, open windows are not a whim, but a necessity.

Be healthy!