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Blog: How To Absorb Condensation From Windows

How To Absorb Condensation From Windows 31 Jan 2020

How To Absorb Condensation From Windows

The accumulation of condensation on windows can really impact the aesthetics of a room and it can also lead to issues such as mildew, damp, mould, ice formation and even permanent structural damage! The best way to absorb condensation from windows is to use a dehumidifier. Consendation can be a telltale sign that the relative humidity in the room is too high and that could be the reason why you're noticing other troublesome issues like damp spots, peeling wallpaper, and sticky air that wreaks havoc on your allergies!

What Is The Best Way To Remove Moisture From A Room?

The best way to remove moisture from a room is using a dehumidifier. Raising the temperature in a room using a heater and improving ventilation and airflow using a fan or open window helps moisture to evaporate from surfaces and from walls and floors. Once the moisture is in the air, it needs to be extracted, otherwise it will simply be absorbed back into the walls, floors and condensate on to surfaces. A dehumidifier offers a simple and effective way of removing moisture from the air in a room. A dehumidifier draws the humid air in, removes the moisture and circulates the dry air back into the space. A dehumidifier helps to improve the quality of the air and reduces musty smells that are a common complaint in damp rooms.

What Does A Dehumidifier Do? Will It Get Rid Of Damp?

Dehumidifiers reduce and maintain the level of relative humidity in the air. They are electrical appliances that extract the excess moisture from within the air. Dehumidifiers have many health and comfort benefits and they also prevent the growth of bateria - preventing mildew, mould, rot, etc. Dehumidifiers are suitable for a massive range of applications and there are domestic dehumdifiers, commercial dehumidifiers, and industrial dehumidifiers for every environment. They can be used in the home, in warehouses, construction sites, indoor pools, gyms and much more. There are two main types of dehumidifier. They each work in different ways and are more effective in different settings. Refrigerant dehumidifiers (also known as Compressor dehumidifiers) have a cold element inside the unit that lowers the temperature of the moisture within the air to below its dew point, causing the moisture to condense. The condensate water is then collected in a tank or drained away. Desiccant dehumidifiers have a honeycomb type mesh of absorbant material inside them. This desiccant mesh collects water as moist air passes through it and then the moisture is exhausted away as a vapour.

Dehumidifier vs Heaters

You can use a heater to dry walls, floors and surfaces within a room. However, heat alone only disguises the effects of humidity. The hot air rises to the ceiling and the moisture remains. Adding heat to a space doesn’t remove the moisture from the air. We have listed a few pros and cons of using a heater or a dehumidifier to dry a space -



  • Do not remove the moisture, they just just draw it out of surfaces

  • Remove moisture

  • Do not help if the space is already warm

  • Return at least two times the energy input back into the space

  • Do not reduce the risk of condensation

  • Lower the risk of condensation

Where Can I Buy A Dehumidifier?

There are many different types of dehumidifier available on the market so sometimes it is easy to categorise them by application to find the best match for you.

Industrial Dehumidifiers

Robust units that are easy to install, operate, and maintain. Dehumidifiers like the Master DH 732 Professional Dehumidifier are highly efficient and are ideal for flood restoration, construction, painting and decorating, and more.

Commercial Dehumidifiers

Tough units that can be portable or wall-mounted. They are easy to use and have large extraction rates. Dehumidifiers such as the Dantherm CDF 50 is ideal for libraries, museums, offices, and more.

Home Dehumidifiers

Home dehumidifiers are a versatile and effective solution in the prevention of mould, damp and decay in homes, garages, and other small spaces such as caravans, etc. These units are usually compact, portable dehumidifiers with an integrated water tank, although there are many versatile units available. The Woods MDK11 is perfect for many different rooms in a home, where as the Ecor Pro LD800 can be mounted, ducted, and used as a whole house dehumidifier.

Check out a whole range of dehumdifiers for sale at National Heater Shops.

If you only need a dehumidifier for a short period, we have a great range at competitive prices at National Tool Hire Shops.

What Are The Benefits Of Removing Moisture From A Room?

Where moisture is present in a room, it can cause serious effects if it's left untreated. This can put the structure of the building in danger and have a major impact on the value of your property. Sometimes the damage to important structural is irreversible. Here are some common problems -

  • Consendation on windows
  • Peeling paint & wallpaper
  • Mildew & mould
  • Warped wood
  • Corroded metal
  • Electrical damage
  • Musty odours
  • Internal ice formation

Having a dehumidifier in your home can prevent the following issues. They can also promote a healthier lifestyle and prevent the growth of -

  • Bacteria and Viruses

Studies have proven that the survival, growth and infection rates of bacteria and viruses are increased significantly by humidity above 60%. These microbes are highly susceptible to dehydration and their structures change significantly at below 60% humidity, either killing or incapacitating them.

  • Dust Mites

You’re never going to be able to get rid of dust mites, but if the humidity in your home of over 60% to 70%RH then conditions are favourable for their growth and reproduction. The American Academy of Allergy, Asthma and Immunology have found that humidities below 50%RH stunts the growth of Dust Mites. Dust mites can cause an allergic autoimmune response of congestion, itchy, watery eyes and dry coughs in the same way that mould does. As humidity increases, the amount of dust mites increases and symptoms get worse.

  • Mould

Moulds are omnipresent, so there’s no getting away from them. However, we do know that mould thrives in humid places. While mould spores are constantly around, a growing patch of mould in your home can dramatically increase the number of spores in the air. Some moulds also produce mycotoxins, which are harmful to our health. When it comes to your health, it’s not the mould on the wall that is directly most damaging to your health, it is the airborne mould spores and mycotoxins which are harmful airborne toxic compounds that some moulds produce. Typical symptoms of mould exposure include -

  1. Sore, red, watery or irritated eyes
  2. Runny nose or sinus congestion
  3. A cough, sneezing fits, wheezing, a tight chest or difficulty breathing
  4. Skin rashes
  • Asthma

There is a correlation between mould exposure during an infant’s early years and the likelihood of them developing asthma or other respiratory issues later in life. In people who already have asthma and closely linked respiratory problems, mould exposure is almost certain to worsen symptoms.

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