If you're just getting familiar with dehumidifiers, it's important to understand that there are different types of them on the market. In general, there are three main types of dehumidifiers. Understanding the differences between these types of devices is very important as it will greatly impact which of these ones will be the best fit for you and your condition.
Desiccant dehumidifiers are relatively new to the market. In essence, how they work is they absorb and collect the moisture from the air using a desiccant – hence the name. Now, a desiccant is not some fancy tool or a piece of machinery, it's just an absorbent material, similar to the silica gel you might find in the boxes when you're shopping for tech.
These ones can come in real handy in a cold room, as they can operate at a much lower temperature compared to the other dehumidifiers. So, if you like sleeping chilly, this might be the best option for you.
The way a desiccant dehumidifier works is rather simple and safe. There are no refrigerants used, so they’re more environmentally friendly. They’re also quite slimmer, quieter, and odourless and all of the trapped moisture is being evaporated and turned into water that is either drained straight from the device or into a tank.
Refrigerant dehumidifiers (AKA compressor dehumidifiers) are the classic, traditional type. They’re most commonly found in households and they’re very effective in the right conditions. Once again, how they work is really simple. They draw in the moist air over the chilled metal plates, over and over again, until all of the water from the air condensates and drips down into a water tank. However, because they use chilled metal plates to trap the moisture, they’re not very effective in the ‘cold’ rooms and by ‘cold’ – we mean anything below 17 or 18 degrees Celsius.
What happens in those instances is that the water tends to freeze on the cooling coils and that affects the performance of the device significantly. However, some beefier compressor models can handle colder temperatures and slightly cooler environments, but in those instances, you’re much better off with a desiccant dehumidifier.
Whole-house dehumidifiers are basically upgraded ventilation systems that remove dampness and moisture from your house. The obvious benefit of this system is that it’s far more effective, which is to be expected considering how big and powerful it is.
In addition to that, whole-house dehumidifying systems are remarkably quiet and inexpensive to operate. You will, of course, have to invest more money initially, but from that point on, it’s virtually free.
They’re low maintenance, they will last you at least a decade and believe it or not, the installation is quite quick and easy, as well.
Knowing what to look for in a humidifier when you’re about to buy one will make your decision a lot easier. Knowing what pint capacity or hydrostat is will make a significant difference. For that reason, we have highlighted some of the most important features of these devices, so, here’s what you need to know.
When we talk about the size of the dehumidifier, we're basically talking about its ability to remove excess moisture from the air. So, the size of the dehumidifier is defined by how much moisture it can remove from the air and it is measured in pints. Pints per day, if we’re being exact.
So, how do you choose a proper one? Well, you'll need to calculate the square footage of your space and how damp it is. So, for instance, if you're looking to dehumidify a moderately damp space that's about 500 square feet – you should be looking for a 30-40 pint dehumidifier.
A water tank or a collection tank is just what it sounds like. It's an internal tank used to collect water from the air. Once the tank gets filled, you have to empty it out. This is a rather simple process, so don't worry too much about it. Naturally, the models with bigger capacity will come with larger water tanks and most of the newer models come with an auto-shutoff feature that will disable your dehumidifier until the tank has been emptied, so you don't have to constantly check whether the tank is full or not.
If you don’t want to bother with emptying the water tank every now and then, you can find a model that can be drained through a hose. Basically, these models don’t need a water tank, as there is continuous draining of the water through the hose.
In most cases, you can just use a regular hose that you attach to your dehumidifier. It’s really easy to do and many prefer to do it so they don’t have to worry about the water tank, and they can just leave their devices running whenever they want to.
In case you didn't know, dehumidifiers have air filters, too. Those filters, naturally, have to be cleaned from time to time. Now, to avoid guessing when the time is right, you can find a model with an indicator that informs you when the time to clean the filter is.
Cleaning the filters is easy. You remove the filter from the device according to a manual and you just hand-wash it with warm water and mild soap. Dry the filter thoroughly after the wash and put it back where you've found it.
To avoid over-drying the air and to make sure everything’s in the ideal range, most newer models use humidistats or hydrostats to measure the humidity level in the air and set up the device accordingly. It’s a pretty neat feature most of the newer models have as it eliminates the hassle of manually setting up the dehumidifier and turning it off and on whenever you feel like there’s something off with your air. With an auto humidistat, you just set it up the way you want it and that’s it.
If the device doesn't come with a humidistat, you can purchase it separately, but we'd advise looking for a model that already has it built-in.
Naturally, for the best experience, you'll need a device that will be able to correctly measure the relative humidity of the air in the room. That's what the hygrometer is for. Most of the newer devices come with a very precise built-in hygrometer, which can detect and display relative humidity very accurately.
It’s important to pay attention to this feature because if the hygrometer’s readings are off, you won’t ever reach the desired humidity levels if the device can’t detect them properly.
Most dehumidifiers have three basic settings when it comes to fan speeds – low, medium and high. The low setting allows for more efficient moisture retention, as low speeds allow for more time to draw out the moisture from the air. Higher fan speeds will pump more dry air into the room, but they will make more noise as well. A safe bet is to keep things in the middle and tweak your other settings, like preferred humidity level and just leave the fans be.
Before you buy a dehumidifier, make sure you ask the right questions. Why do you need it? How humid is your room? Do you need it just for your bedroom or your whole house? All of these will affect your decision when it comes to choosing a dehumidifier.
For instance, if you’re only planning on using a dehumidifier in your bedroom, you might want to think about the air filters or noise levels. Some people prefer sleeping in silence and others prefer some white noise in the background. Also, if you want an air purifier – the additional filters could come in handy.
Also, if you’re planning on moving your device from room to room, you might want to consider finding a model with caster wheels for improved portability.
When it comes to dehumidifiers and extreme conditions, it doesn't get much better than this. Pro Breeze 20 can reduce the humidity levels of very damp places by 30% in just a couple of hours. It can drop the moisture level of any room down to 40% in about half a day and all that you have to do is set it up. Bonus points for a great LED touch panel.
Another variant of the Pro Breeze, only this time in a slightly smaller and far simpler package. This one comes with 3 basic operation modes (auto, sleep and continuous dehumidification mode) which you can select from an LED display on top of the device. You can expect more from this one than just decent performance and energy efficiency, whilst being a reasonable amount of money.
This Pro Breeze dehumidifier is lightweight and compact (one-litre water tank) which makes it easy to move from room to room, depending on where you need it most. It features an adjustable timer that allows you to use it overnight for up to four hours before it switches off, thanks to the auto shut-off feature. If you are a light sleeper and cannot sleep with any noise, this product is a quiet dehumidifier so may be the option for you. Being both a cost and energy-efficient dehumidifier is another bonus to using this around the house.
This is possibly the best dehumidifier on the market and because of its large capacity, it’s suitable for your whole house. What's even more awesome about this product is that it comes with a HEPA filter which pretty much cleans the air of all pollutants and allergens which is splendid.
The EcoAir DD122 is our pick for the best desiccant dehumidifier. It's very efficient, even though it comes in a rather small package. It boasts an anti-bacterial filter, which makes it a great choice for those who are allergy sufferers. The tank is small, so you’ll have to empty it out more often, but on the bright side, it’s really easy to remove and you don’t have to worry about any spills.
Meaco knows how to make a quality product and MeacoDry ABC is proof of that. It’s a very efficient and remarkably quiet refrigerant dehumidifier. Unlike many others, this one even looks good and clean. It’s powerful enough to dry clothes and drop the humidity levels down to your liking in just a few hours.
If you’re looking for something small and portable, but still good enough so that it actually does the job it's supposed to do – look no further. Pro Breeze 500ml is the best portable device on the market and is ideal for small rooms, such as a utility room or a bathroom. Don’t expect it to perform miracles in large spaces, as it’s not designed to do so.
Owning a dehumidifier isn't solely about controlling the level of humidity in your home. It's about a lot more than that. There are many advantages that come from owning this product, because, believe it or not, humidity is one of the worst problems.
First of all, you’re getting rid of the damp and mould areas. Humid conditions are ideal for mould to thrive. Mouldy ceilings or other areas not only look horrendous, but they pose a health risk as well. It can cause cough, eye and throat irritation, sneezing, skin irritation and so on.
The energy efficiency is better than using a tumble dryer and is a more cost-effective alternative. Most dehumidifiers have a laundry function or laundry setting that helps with drying clothes by removing moisture from any wet clothes.
In addition to removing excess moisture from the air, the dehumidifiers are also getting rid of all kinds of various toxins and allergens from the air as well. Naturally, it won't do the same job as an air purifier function, however, it will do a pretty solid job of improving the air quality in your home.
Finally, we just want to sum up all of the things we’ve learned so far and maybe answer some additional questions that are on everyone’s mind.
Measure your room's square footage and humidity levels and choose accordingly.
Any place will work, as long as nothing’s obstructing the airflow.
Fans run for as long as the unit is on or a timer is set.
You can change your filters annually.
Depending on the type, it will cost anywhere from £1000 to £2500.
It is not necessary to run it all the time.