The impact of high humidity on human life

During the rainy season, when there is too much humidity in the room, causing excessive humidity,
Maybe you will feel unwell, lack of energy,
Maybe your home will become damp and give off an unpleasant mold smell,
Maybe your clothes and quilt are always wet,
These indicate that high humidity has a serious impact on our lives. Below we will introduce specific aspects of the impact and specific methods to deal with high humidity.



What is humidity?

Humidity is the concentration of water vapor present in the air. Water vapor, the gaseous state of water,is generally invisible to the human eye.Humidity indicates the likelihood for precipitation,dew,or fog to be present. Humidity levels can be expressed as either absolute humidity, specific humidity or relative humidity.

Specific humidity is expressed as the ratio of water vapour mass to the total mass of moist air. Absolute humidity is the water content of the air, and is measured in either grams per kilogram or grams per cubic metre. Relative humidity is measured as a percentage, and it expresses the absolute humidity relative to the maximum level of humidity that could occur at the same temperature. When it comes to 100% relative humidity, it means that the air is completely saturated with water vapour and isn’t able to hold any more. This also means that there’s a strong possibility of rain.

According to research, when the room temperature is 25°C in summer, the human body feels a suitable relative humidity of 40%-50%; while in winter, when the room temperature is 18°C, the relative humidity is controlled at 60%-70%, and the human body will feel more comfortable.

Humidity levels chart Humidity levels chart

What is the impact?

Affect physical health

How much is too much humidity? Well, experts agree that the optimal RH level for comfort and to avoid health effects is between thirty and fifty percent.

So, high humidity in your house can cause health problems, sleep discomfort, mold to grow, harmful bacteria to spread and also some damage to your home.

Whenever you are spending time in your workplace or home with a humidity level of over sixty percent, it’s likely that you would experience particular health concerns.

High Humidity In House Health Problems High Humidity In House Health Problems

The following are the health problems that high humidity may cause:

  • Sneezing, wheezing, or difficulty breathing
  • Stuffy nose
  • Itchy, watery eyes
  • Skin rashes and other irritation

Specific analysis:

Direct impacts:

It is more likely that you will experience indirect effects. Whether it is outdoors or indoors, too much humidity with high temperatures may cause the bodies to overheat.

If it happens, the consequences can be really dangerous.The reason behind it is that humidity impedes the ability of the body to regulate the temperature of the body and cool down.

Extreme humidity can basically cause the body temperature to increase. So, how does it work?

Generally, when temperatures get very hot, the body has defense mechanisms, which can kick in to keep the internal temperature steady.

These are altered blood circulation, increased respiration, and sweating.

Sweating is a vital one and it’s greatly impeded by excessive humidity in the air. Sweating basically cools the body if moisture evaporates from the skin.

But, when the air is saturated with water vapor already, sweat cannot evaporate. Therefore, rather than cooling down, you will feel stickier and hotter. At this point, the body will be forced to resort to some means to try cooling off.

That is the reason why you might notice yourself breathing rapidly once you get hotter. Your heart will pump more blood to extremities and less to internal organs and brain. That is the reason why you feel foggy and sluggish.

You might faint or feel light-hearted. You might also feel muscle cramps, particularly in your legs.

Due to the loss of electrolytes, salt, and fluids, the body will overheat. Then, if your body cannot maintain temperature, you may develop heat stroke or heat exhaustion that can be fatal. 

Note:Mold allergies are also a significant contributor to childhood asthma, which can be a debilitating and costly disease for children who develop it at a young age.

Indirect impacts:

While humidity’s direct effects can be harmful, in many cases, you’ll know you are in danger and find ways to cool off. But, the indirect effects of too much humidity can be insidious.

Humidity may cause some changes in your indoor environment, which may cause you to be ill.

Viruses and bacteria take hold in humid conditions. Spending some time in an environment with high humidity can make you sick, particularly from respiratory infections.

The viruses and bacteria that cause illness to grow and thrive in the air that is above 60% RH.

In addition to that, humid air makes such contaminants stay airborne for a long period of time before setting into the surfaces.

Therefore, when you are in a humid place and people are coughing and sneezing around you, such nasty germs stick around and multiply. And it is more likely that you’ll breathe them in.

Affect the living environment

The humidity in the indoor room is too high, which makes the clothes, furniture, carpets, ceilings, walls, etc. in the room moldy, iron products are prone to rust, electronic devices are short-circuited, and carpets and wallpapers are prone to static electricity.These will damage our houses to a certain extent. In addition, the house has been in a humid environment for a long time, and it is easy to produce a mildew smell. Damp quilts and mattresses will seriously affect our sleep quality and work day mood. These conditions bring great troubles to life.

signs of high humidity signs of high humidity
  • Condensation on windows

Condensation on the interior glass, water beading on a window or the presence of what looks like a fog or vapor on the glass are typical signs that there is too much moisture in the room. A build-up of moisture on a window sill can eventually rot wooden casings and that wetness will allow mold to grow. Mold will look like a black or dark grunge on the bottom window trim, or in the track of a patio door.

Since steam rises, bathroom moisture problems are often found on ceilings or up in the corners of the walls. Bathrooms that do not have efficient fans to divert steam and humidity to the outdoors, most often have some problems with mold.

Mold can grow on the wall, ceiling, under or around the toilet, or behind the bath or shower surround. A leaky toilet or plumbing can also cause moisture problems.

  • Mildew spots on the walls
  • A musty smell hanging around your home or in certain rooms

Anytime there is a musty smell, there is mold somewhere and that is not healthy for anyone. Possible causes range from an improper window or door seal, construction sealing issues to wet basement areas from high groundwater seepage, which can be a natural occurrence in your particular locale or by inadequate weeping ​tile installation around the home.​​​​

The main reason for the upturned floor is that it is too humid in rainy and rainy seasons. If the humidity in the room is too high, then the wooden floor will swell irregularly and cause deformation. Wood is the easiest thing to damage by insects. Undoubtedly, wood floors will become the first choice for insects. The production of insects requires a certain degree of humidity and temperature. Therefore, if the floor has insects, most of the cause is caused by moisture, so the key to insect prevention is moisture prevention.

  • Rotting wood (beams or floors)
  • Wallpaper peeling

When there is an excessively high concentration of moisture in the air, condensation will occur on the surface of an object that is too cold, such as wall paint. When the water droplets absorb and infiltrate the surface of the wall paint film for a long time, the wall will naturally become wet, and the wall will peel off. This not only affects the beauty of the house, but also affects people’s mood.

Therefore, excessive humidity will have serious effects on people’s health and living environment. These effects are reflected in all aspects of our lives. It is very important to maintain a normal humidity in the home. We cannot ignore this problem. The following figure clearly reflects the difference. Humidity has different effects on our lives.


Ways to deal with high humidity


We can use the following methods to prevent excessive humidity in the room.

  • Bathroom fan
    Installing a bathroom fan can help to improve air circulation in the bathroom where warm, damp air accumulates.
  • Rangehood
    A range hood is a mechanical fan situated above the oven, stove or cooktop in the kitchen. It helps to extract steam, heat, cooking fumes and odors from the air.
  • Washing line
    Drying clothes on a line dryer out of doors will help combat the amount of moisture you are bringing into your home.
  • Air conditioning
    A very easy solution, but not always the most cost-effective.
  • Replacing air conditioning filters
    Replacing existing air conditioning filters will help to ensure fresh air is being circulated.
  • Opening windows                                                                                                  Good ventilation is key in your home for a multitude of reasons.
  • Use charcoal or rock salt to absorb moisture                                       Charcoal can remove moisture, odor, and purify the air.
  • Remove houseplants
    Remove houseplants Remove houseplants
  • Heat the room with a radiator
  • Dehumidifier                                                                                                        In areas where you are really struggling, a dehumidifier could be the best solution.

But, among the different ways to control the moisture in excess in your home or workplace, installing a dehumidifier can be the best solution to avoid some health problems.

Just make sure to choose the right dehumidifier for your needs.

Benefits of a Dehumidifier

  • Controls moisture levels

Dehumidifiers reduce humidity levels, making your home less hospitable to allergens such as dust mites, mold, and mildew. A dehumidifier can help maintain the surrounding dampness level below 55 percent. Without sufficient humidity, the growth of mold and mildew will be hinder effectively.

  • Improves comfort

Dehumidifiers reduce irritation to your skin and your respiratory system, allowing you to breathe easier and feel comfortable in your home.

  • Helps with allergies

Many allergens and allergy triggers, such as dust mites, mold, and mildew, favor humid environments. Rooms where water is used or that contain poor air circulation, like bathrooms, laundry rooms, and basements, may be especially prone to harboring allergy causing substances, which can spread throughout a house. A dehumidifier can help decrease the moisture that supports allergen growth, improving air quality and helping to prevent some types of bacteria and virus growth as well.

  • Remove musty mold and damp smell

Dehumidifiers help reduce odors that can accompany mold and mildew in your home—getting rid of that “musty” or “rotting” smell.

  • Destroy mold, mildew, dust mite living habitats

These devices help to reduce the possibility that you will develop mold on your clothing, furniture, and other linens (such as curtains or bed sheets).

  • Healthier breathing space

Running a dehumidifier helps reduce dust in your home, so you won’t have to clean as often. High humidity can be hard to breathe into especially for people with sinusitis. Newborn, baby, and children are also one of the biggest sufferers as poor air quality can create an uncomfortable breathing space for them. Without sufficient sleep, it may affect their development growth which is very crucial at this stage. A dehumidifier will reduce dampness so there is no compromisation on the breathing quality. With less moisture in the air, there will be fewer allergens in the air that would result in poorer air quality. An air purifier would complement the dehumidifier efforts by removing airborne contaminants.


There are several different options when it comes to dehumidifiers, and the one you choose depends on the space in which you plan to use it, as well as the humidity levels. There are small capacity models for a single small room, large capacity models for larger areas such as a large room, basement, or an apartment, and there are whole-house models available as well if you live in a very humid climate, you suffer from significant allergies, or you have a large home. For more specific and unique needs, consider purchasing a dehumidifier with special features.

Therefore, when purchasing a dehumidifier, you need to consider the size of the dehumidifier, energy efficiency and running cost, key features and functionalitiesyour budget and your needs.

Shinco SDZ-20L deshumidificador (3) Shinco dehumidifier Shinco dehumidifier

Getting a dehumidifier can help you live a healthier, happier life, so if you are suffering from allergies and other symptoms, the answer to the question of whether you should own a dehumidifier is probably yes. Find out more about the different models and options available, and see which one will fit your budget and help you get clean, healthy air in your home.

You’re now wondering, “which one should I go for?!”.

In a hurry? 

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Good luck!