Disadvantages Of a Dehumidifier + Pros & Cons

Many people always think about the good rather than the bad. The advantages are looked up but the disadvantages of a dehumidifier are often neglected. We all know how effective a dehumidifier can be in removing moisture in the air and prevent mold growth. It comes with a cost and not everyone is willing to accept the drawbacks. So before you blindly follow what internet people have preached, let's look at the pros and cons of owning a dehumidifier.


A Surge in Electricity Bills

Dehumidifier is one of the biggest electric hoggers home appliances. On average, a full-sized 70-pint dehumidifier will cost you $10 a month or $120 a year. The cost could cut to half if you pick a smaller capacity unit like a 30-pint model, but could also double if the run time hour is twice as long. This is because there are condensation and heating processes involve to extract water from the air. The entire dehumidification uses a lot of watts of energy and will push your electric bill skyrocket on continuous operation. The only way you could save up on the operational cost is to pick an energy-efficient unit with Energy Star Rated.

Neverending Maintenance

Like an air purifier, dehumidifier requires schedule maintenance and cleaning or else it will not work. Depending on the drainage options you opt for, a person may have to routinely empty the water in the bucket every 1-3 days depending on the room dampness. Even if you rely on the convenience continuous pump or gravity drainage, you will still need to check on it every now and then in case of overflow. Then there is the permanent filter that requires cleaning every month or so. Without doing so, airborne contaminants will be redispersed back to the air instead of being trapped in the filter. All in all, the above tasks are repetitive, time-consuming, and annoying especially when you need to empty a reservoir filled with water.

Warm and Noisy

A running dehumidifier will generate a gentle humming noise at low speed. At high speed though, it can be very loud that will disrupt a person’s daily activity. No matter how silent the manufacturer advertises its unit, there is bound to be some background noise. You could position the dehumidifier further away to lessen the impact e.g. bedroom or living hall. Otherwise, operate it at the lowest speed and kept it on longer so the same amount of moisture can still be drawn.

A dehumidifier can get warm on long operation hours. It will generate excess heat that may affect the room temperature slightly. If you are on a hot day or summertime, the extra heat is not welcome even though the differences are neglectable.

Advantages Of a Dehumidifier

There are plenty of pros with a dehumidifier other than just reducing your home dampness level. The result will snowball from the ideal relative humidity to better breathing, lesser allergens, and cleaner air. Let’s explore the goodness of a dehumidifier.

  • Stop mold, mildew, and dust mite from breeding – Having a warm and humid environment encourages the spawning of microorganisms. Mold, mildew, and dust mites are the most common type that will appear in this situation. A dehumidifier will keep humidity below 50-55 percent so the microbes will not thrive in the condition. With fewer and fewer allergens in your breathing space, you will less likely experience any allergy symptoms.
  • Reduce allergic reactions and respiratory diseases – The notorious black mold and its mycotoxins chemical is nothing to be scoff at. On short exposure, it can lead to chronic cough, sneeze, red eyes, skin rashes, headache and so much more. On long exposure, black mold poisoning can cause upper respiratory infections, inflammation, lung and liver damage.
  • Breathe Safely and Comfortably – Asthmatic person rejoice! A dehumidifier can maintain a humidity level in a room between 30-50 percent. This is the ideal humidity to breathe into without feeling the air is overly dry or damp. The air is cleaner will no musty, foul-smelling odor. There are also fewer irritants in the air that would otherwise be a living threat of an asthma attack.
  • Protect Your Home from Rust And Decay – Everything including your home can be ruined by water damage. From your wall. ceiling, insulation board, windows, and door, perpetual exposure to the water vapor will lead to rot and decay. Your personal belongings are not safe from the moisture either. Clothes, documents, toys, and books are prone to mold growth. Lastly, electronic devices with exposed metal parts will rust and corrode and caused it to malfunction. So safeguard your home from excessive moisture with a dehumidifier.

Living in a high humidity environment can lead to all kinds of miseries that you least expected. From feeling heaty due to sweat retention to exposing yourself to airborne allergies, one can do much better. Even your high humidity woes are only short-lived during summer when the air is hot and humid, it does not guarantee you will be exempted during winter. Before we jump on the dehumidifier bandwagon, simple activities such as opening windows and doors do help. You can also do one up by fixing leaks in pipes, roofs, and cracks on walls or tiles. Lastly, desiccant and houseplants can help reduce indoor dampness but the outcome is minimal.

Disadvantages of Owning a Dehumidifier

Let's start with the bad news first. The number one concerning factor in a dehumidifier is obviously the cost, follow closely by the maintenance. These 2 reasons itself will be enough to deter buyers and current owners from continue operating the machine. No matter if the dehumidifier is used in the basement, room, garage, or living hall, the issue remains.



Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.