Most of our time we live in closed rooms. Bedrooms, offices and school buildings are the most used rooms. For this reason, air quality is of great interest!
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We spend most of our time indoors. Bedrooms, offices and school buildings are the longest-used rooms. For this reason it is recommended to pay particular attention to a healthy indoor climate. Whether we feel comfortable in a room depends on the building conditions and personal perception of the climatic conditions in the room. Essential factors for a healthy indoor climate are:
With proper ventilation and heating behavior, you can influence these factors in your favor.
However, our feel-good area does not only depend on temperature or humidity, but both factors in a balanced relationship determine the optimal range. If, for example, the walls are cold because of poor outdoor insulation, the air tempe- rature must be higher so that you feel comfortable in the room. In the case of damp, cold air as a permanent condition, rheumatic diseases may occur. A longer lasting humidity reduction of 35% means that the upper and lower airways are affected.
Conscious heating and ventilation not only ensures healthy room air, but also helps you save energy! A reduction of the room tem- perature by 1°C lowers the heating costs by about 6 percent. In concrete terms this means: reduce the room temperature from 24°C to 20°C and save between 20 and 25 percent heating costs.
Just by breathing, the human body releases water into the air. In addition, moisture comes from cooking, bathing, showering, drying, etc. A family of four produces an average of 10 liters of water every day.
|Human||1 to 1,5 liters|
|Cooking||0,5 to 1 liters|
|Laundry drying||1 to 1,5 liters|
|Showers||0,5 to 1 liters|
|Potted Plants||0,5 to 1 liters|
In order to transport 10 liters of water from interior spaces, several cubic meters of air must be moved daily. In addition there is the residual building moisture in new buildings. For reasons of cost and time, these days, the building shell is not allowed to dry out during the winter. In addition, some coatings on walls significantly retard the drying process (e.g., resin dispersion paint).
Do not use wallpaper, but a diffused wall paint. Let us advise you in your color shop or DIY store. Preheat more at the beginning and ventilate frequently during the day. Do not place your furniture directly against a wall, keep a distance of approx. 5-10cm.
High-density windows and doors are advantageous in several respects: they save energy and prevent train phenomena. The cost of heating and energy saving is well developed by many residential users. Save money and also save the air!
Unfortunately, it is not so easy:
As a negative companion of dense windows and doors today there is an increasing amount of moisture and consequently the formation of molds in new buildings or refurbishments. The concentration of harmful or at least critical air gasses (carbon dioxide, formaldehyde ...) in the room air is also significantly increasing. Nowadays, the hygienically necessary minimum air change must be achieved by manual ventilation. What used to be done automatically by leaking joints, so to speak, now being carried out by every housing user on new windows.
If you do not use proper ventilation, you can risk your health due to bad air and the risk of mold formation, as the generated air humidity remains in the room.
Air can only absorb a certain amount of invisible water vapor. If this value is excee- ded, the excess water vapor is released to the environment. In nature, it begins to rain, at home, for example, the mirror in the bathroom, the window in the bedroom, etc.
On humid summers and tropical climates you notice it especially: air feels quite warm and moist. And if you order a cool drink to cool down, the glass is fogged. But why is it like that?
If warm ambient air with a high water vapor content hits on a cold drink or a wall, the air cools in this region and consequently cannot store as much water vapor. The excess moisture in the air has to be added to the environment, i.e. to your glass, your walls, your furniture, ect.
In the case of glasses and mirrors, this effect becomes visible through the fogging of your glass, or penetrates the moisture in walls, furniture ect. It may be that you do not notice this immediately because it is not as obvious in the mirror. However, if this condition persists over a long period of time, mold fungi can grow!
If, for example, the walls are cold due to poor external insulation, the air temperature must be higher so that you feel comfortable in the room and the wall temperature is warmed on the other hand to prevent possible condensation on the wall and the risk of mold formation as a consequence of the condensation. They compensate for poor outdoor insulation and the risk of mold attack by increasing heating, thus con- suming more energy.Do not let it get that far!
Air can absorb different amounts of water vapor depending on the temperature. Cool air absorbs less water vapor than warm air.
Cold outside air, which gets into the room when it is ventilated, heats up and can therefore absorb more air humidity. In order to remove as much moisture as possible from the room, you should therefore ventilate frequently during the day.
You can display the humidity for a certain location on the Internet on various portals. It is easier and more convenient to use the bluSensor AIR ventilation app. This is available free of charge and shows the outside humidity at your location. If you also know your indoor humidity the app can calculate if it is a good time to air your room.
If you are on the safe side for health reasons or to prevent mold, you should check your room ventilation. To match the bluSensor AIR ventilation app, there is a bluSensor measuring device, which is integrated into the app and automatically takes into account the air humidity in the interior during the ventilation calculation - without having to manually enter indoor humidity values. In addition, you can analyze your room climate comfortably, precisely and simply by means of long-term recordings and automatic alarm function, and improve your ventilatory behavior accordingly
In order to maintain a healthy indoor climate with sufficient oxygen and optimum air humidity, fresh air must enter the room from outside. You have to ventilate and indeed ventilate. As short as possible - to save energy - but nevertheless long enough - to achieve an effective air exchange.
Sufficient air exchange is the basis for a living climate.The advantages of proper ventilation are:
Our app bluSensor AIR helps you to find the right time for airing your room.
|Cross||2 - 5 minutes||Wide open and transversal windows|
|Quick||5 - 10 minutes||Fully open window - opposite door closed.|
The duration of the ventilation in order to achieve air exchange is strongly dependent on the outside temperature. The colder it is outside, the shorter you have to air.
Air 2 to 4 times daily, depending on how much you are in the rooms.
The bluSensor AIR App, in the free version, has an integrated timer that calculates the optimal ventilation time depending on the outside temperature and humidity, and alerts you when this time has elapsed so you do not waste unnecessary heating costs.
Make it a habit immediately ventilating the room after showering, bathing, cooking or floor washing. Thus the humid air reaches the outside best, does not enter into furniture and walls and does not spread in the other rooms.
Make it a habit immediately after showering, bathing, cooking or floor washing to ventilate and before using the rooms to close the doors. These should be opened again only after the ventilating process. Thus the humid air reaches the outside best, does not enter into furniture and walls and does not spread in the other rooms.
By the way:
If the outside air is cold, you can also vent it in rainy weather, as the air in the room is heated and moisture can be absorbed from the room.
After getting up, you will be able to ventilate your bedroom. This makes you fit for the day and distributes the moisture that has accumulated over night in the air, furniture and plaster. Before sleep, you must ventilate again to reduce the carbon dioxide in the room to a minimum. This ensures a good night rest.
In the bathroom after showering, the water from walls and floors should be dried. Wet towels should
be dried as quickly as possible on the radiator. For bathrooms without windows, a shaft vent should
Note: Did you know that the exhaust ventilator in the bathroom and toilet only works properly when fresh air enters the apartment at the same time? A corresponding negative pressure must be generated for proper operation of the fan.
Use a fume extractor in the kitchen with exhaust air to the outside. Such a trigger helps to remove a lot of moisture that is produced during cooking.
Do not leave too little heated rooms or rooms with a lot of moisture, so that the humidity does not spread throughout the home.
Less heated rooms (e.g., bedrooms) should not be warmed by warm air from adjacent rooms. Warm air enters the room, cools down, and condensation can occur on walls or window panes. Therfore always close doors to colder rooms.
The right time to air in the summer is early in the morning or later in the evening, when the outside temperature is cool. During the day, windows and doors should be closed as far as possible.
The basement should be ventilated in the summer as little as possible, and then only in the cool morning hours, otherwise warm air hits cold cellar walls and furniture and condenses and there is the risk of mold formation. False airing in summer is the main cause of damp cellars.
Avoid leaving your windows open during the heating period in a permanent tipping position, since condensed water forms on cooled areas in the room. Heating energy is also lost. In the summer months, however, this is no problem. Note, however, that this is not a substitute for a proper air vent.
Apart from humidity and temperature, bluSensor AIR also shows the dew point. You can position it in exposed places and often ask for your air climate - wireless and convenient, without having to move furniture.
Mold fungi occur everywhere. However, if the mold concentration exceeds a certain value, it can lead to health problems, especially airway complaints. Spores and metabolic products of molds enter the room air, are inhaled and can trigger allergic and irritating reactions in humans.
The cause of mold is always increased moisture.
Proper ventilation reduces the humidity in indoor areas and thus prevents mold infestation.Reduce moisture emission
Do not place furniture in a room corners, as these are particularly vulnerable. Air circulation must be possible at critical points.Do not place the furniture directly on the wall
Do not place your furniture directly on exterior walls. By a distance of 5-10 cm a residual circulation of air can be achieved.Hang pictures with Space
Also make sure you have a residual circulation behind the pictures.Select the appropriate wall surface
Avoid wallpapers, dispersion paint or glue paint and use mineral lime and silicate paints instead. Diffusion-free wall cladding is better than sealing a wall with paints.More heating - should be the last resort
By increasing the temperature, the air can absorb more moisture. Using selective ventilation and heating, more air humidity can be removed from the room.
If you need to wash laundry in the apartment, you should leave the room door closed and then ventilate at short intervals.
Do not allow humid air to enter specially endangered rooms.Initial moldy odor
Molds develop in secret. At first a modest, musty smell is perceptible. In the growth phase, molds form cell filaments, which are mostly colorless and are not recognizable with the naked eye.First visible black spots or dots
For growth, molds form so-called spores, which are recognizable in color as black or yellow mold lids.Surface mold
The mold spreads further and there is no longer any doubt about the infestation.Attention - mold is also created in secret
It is more difficult to detect mold cavities in cavities behind moldings, ceilings or walls. If you suspect this, please consult a specialist. Increasingly, specially trained tracking dogs are used to sniff out hidden mold contamination. This can be helpful if you do not know exactly where your mold has been hidden and you do not want to dismantle all the moldings on suspicion.
Before you begin with a mold remedy, the causes of the mold fungus must be investigated. This is the only way to ensure that the mold does not come back. Elevated humidity can have two causes:
In the case of new buildings, there are often disputes between developers and owners, who mutually accuse each other of deficiencies or wrong housing behavior. In the case of tenancy, mold is often the subject of discord, who is to blame for the mold, which often end in court and have to be decided upon after consulting an expert. House administrations usually assume that tenants ventilate too little.
No matter whether you are discussing with the tenant, landlord or property developer about who's to blame or not, and before proving the damage caused by the customer, you should check your own living habits for correctness. To admit mistakes here is still the easiest and„most cost-effective“ way to eliminate mold causes. Confirming that your ventilation and heating behavior is correct also confirms you in the further clarification of the causes.
If there are no deficiencies in the structure the mold attack is minor, i. e. not more than half a squaremeter, and you are not suffering from allergic or chronic respiratory diseases, and you do not have a weakened immune system. Otherwise, you should consult specialist personnel.
Buy a measuring device that allows you to control and record your living habits. Learn to vent with the ventilation app properly and ensure. If molds nevertheless occur, you can contact a specialist with the recorded values and investigate other causes for the mold.
Avoid excessive amounts of fungal spores entering the room air. Instead of wiping dry areas, use a damp cloth. Do not sweep floors with brooms!Use a vacuum cleaner
Do not touch mold with bare hand.Disinfectant
For cleaning and disinfecting, e.g. 70% for dry surfaces and 80% for humidified ethyl alcohol. Cleaning rags must be disposed of properly - fire hazard of concentrated alcohol. Before use of vinegar is advised: with the vinegar, organic nutrients reach the materials, which promote mushrooming. In addition, many building materials, especially lime, neutralize vinegar.Beware of chemical fungi
These active ingredients remain in the indoor areas for an extended period of time and it can not be ruled out that these active substances endanger the health of the inhabitants. Should you use these nevertheless, you must ventilate often and cor- rectly.Clean thoroughly
The goal must be to completely remove molds. What you cannot clean should be disposed of. Especially for upholstery, carpets or wallpaper, which cannot be completely cleaned, the overcoming is great for many to throw away. Also, the plaster from the wall knock off is for many a large inhibition threshold. But please bear in mind: even killed mushrooms can cause health problems!Mold infestation on smooth surfaces
Furniture flow, ceramics, glass ect. moisten with household cleaner and rehabilitate as described above.Mold infestation on smooth surfaces
Any furniture with a closed surface (chairs, tables, cabinets) should be cleaned as described above.Mold infestation on upholstery
Highly impacted upholstery can only be rehabilitated with considerable effort and should therefore be disposed of.Mold infestation of textiles
House textiles (carpets, curtains) are also to be cleaned only with great effort appropriately. A new purchase is usually the more cost-effective variant.Mold infestation in silicone joints
Silicone joints should be completely removed and replaced with a special sanitary silicone (by specialist company).Mold infestation on porous materials
Wallpaper, plasterboard boards, porous masonry and ceiling claddings can be difficult or impossible to clean, as the pilots penetrate deep into the material.After completion
Pack the contaminated wastes in plastic bags. As a conclusion, you should also thoroughly wash and shower your clothes.