Dehumidifier Benefits, Cleaning & Maintenance

From regular house dehumidifiers to powerful basement dehumidifiers to special dehumidifiers for the crawl space, the usefulness of this relatively simple appliance shouldn’t be taken for granted. Without a functioning dehumidifier, the level of moisture in the air may become extremely high leading to discomfort, mold, mildew and can even damage home and office furnishings. It can also lead to an increase in unwanted pests,allergens, bugs and insects.

If you are still unsure of the benefits of a dehumidifier, read our informative article, Are dehumidifiers really good for your health

All that moisture that your dehumidifier traps makes it a perfect place for mold and mildew to grow. That’s why most manufacturers recommend cleaning it once a month during its busy season. Regular cleaning can also save you money, as a more efficient dehumidifier will be able to remove moisture from the air in a more quick and effective manner. Here’s our step-by-step guide on How to Clean and Maintain your Dehumidifier:

Step 1: Clean the Intake and Exhaust Grilles

There are several intake and exhaust grilles on the outer plastic shell of your dehumidifier that collect dust and debris, which then cause blockages and worsen the performance of your dehumidifier. Cleaning intake and exhaust grilles is easy: simply vacuum them using a vacuum brush attachment, and you should be good to go. While you’re at it, you may also want to clean the outer plastic shell with a damp cloth.

Step 2: Empty the Water Collection Tank

Your dehumidifier has a water collection tank at the bottom. If not cleaned properly, mold often forms on the inside of the tank, which is easy to notice because of its distinct musty smell. You can prevent this from happening by detaching the water collection tank from the unit, emptying it, and then cleaning it thoroughly with an anti-bacterial microfiber cloth, such as this one.

If you notice that mold has already developed inside the tank, you need to kill it using an anti-bacterial solution to prevent it from becoming airborne and spreading to other areas of your home. Virtually any anti-bacterial cleaner, including Clorox, will work fine. Just make sure to let it sit in the tank for a while before you empty it. Visit this website to learn more about how to remove mold from a dehumidifier water collection tank.

Step 3: Clean the Air Filter

Consult your dehumidifier’s included instruction manual to find how to access the air filter. Remove it from the dehumidifier and check its condition. Unless the air filter is very old, cleaning it in a solution of warm water and bleach using a soft brush should be sufficient to restore it to its original condition. Air filters aren’t expensive, but they are an essential component of dehumidifiers, and, as such, they should be checked regularly and always kept in good working order. If you keep your dehumidifier running all the time, you should clean the air filter once every two or three weeks, especially if your environment is particularly dusty

If you need to replace, these are easily available at different sellers including Amazon in their parts & accessories section

Step 4: Clean the Inner Workings

To clean the inner workings of your dehumidifier, you must remove the outer plastic shell. Doing so will grant you access to the coils and fan blade, which collect dust and grime over time and require regular cleaning to maintain adequate airflow. Never clean the inner workings of your dehumidifier without first disconnecting it from power. Once disconnected, use a soft brush to remove any particles that have accumulated on the coils and fan blade.

If the temperature in the room with your dehumidifier often falls below 60 degrees Fahrenheit (15 degrees Celsius), ice may develop on the coils inside your unit. When that happens, you need to defrost your dehumidifier and stop it from freezing up in the future. To learn how, read this article.

Maintaining Your Dehumidifier

  • Place your dehumidifier not closer than 6 inches to any wall to ensure that the air intake and exhaust are not blocked.
  • The temperature of the room or area being dehumidified should be at least 65° so that it does not freeze up or burn up the motor, unless the dehumidifier is specifically designed for lower temperatures
  • The dehumidifier’s air filter is designed to clear dust and allergens from the air to protect the appliance’s insides as well as to improve quality of the air in the room. Ensure that you follow the owner’s manual instructions to replace the air filter in order to ensure the appliance’s best performance
  • The humidistat is a  device that controls the humidity level in the room. The ideal humidity is typically between 40 and 50 percent for optimal comfort and efficiency.

For more information on dehumidifiers, check out these great resources:

The dehumidifier buying guide

What does a dehumidifier do?

How many pints do I need? 

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