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What Are Car Dehumidifiers and Why Should You Use Them?

What Are Car Dehumidifiers and Why Should You Use Them?

What Causes Moisture and Humidity in Your Car?

Cars here in the Philippines are regularly subjected to weather that can swing from heavy rain showers to very high humidity. Couple that with passengers coming into your car drenched by the rains, or in perspiration, and you’re going to have a very serious problem, starting with mildew and mold growth, to really bad cabin air quality that can directly affect your health.

Reducing or getting rid of that humid air and dampness from inside your car is important. One way you can do that is by using car dehumidifiers. It’s not only good car care practice, it’s a great way to make sure your car’s interior air is clean.

What Are the Benefits of Using a Car Dehumidifier?

The key benefit of using a car dehumidifier is ensuring your car’s interior air is clean and free from airborne mold and bacteria. It will help regulate the amount of moisture or humidity, and discourage the growth of mildew, mold, or bacteria. And in these times, you don’t want to compromise your health by breathing in dirty cabin air.

Choosing the Right Car Dehumidifier

There are two main types of car dehumidifiers: electric and non-electric. For the purposes of this article, Automart.Ph will be focusing on the latter, as it is a lot more available locally. However,  you can buy electric car dehumidifiers online.

Of the non-electric car dehumidifiers, there are two types:

  • Reusable Car Dehumidifiers
  • More popularly known as moisture absorbers, this car dehumidifier type comes in pillow form of different sizes and is filled with absorbent material (like silica gel, silica crystals or salts, or activated charcoal) which sucks up moisture from the interior air. Depending on the brand and recommended use, moisture absorbers come in sets of two, are reusable, and can last between 1-3 days (per use).

    Moisture absorbers can be left in your car until they feel heavy and full. Then, simply dry them out (in the sun, or in your microwave oven) before you use them again.

  • Disposable Car Dehumidifiers
  • Because Filipinos have a largely retail culture, it comes as no surprise that disposable car dehumidifiers are more popular. These come in geometrical hard plastic containers with two levels: the first level contains the absorbent material (silica crystals, or a combo of silica and another material like activated charcoal to absorb mildew and other odors), while the second level is where the absorbed water is pooled.

    What’s more, disposable car dehumidifiers are fairly easy to use: take off the aluminum foil cover and stick it in the car cabin and let it work its magic (until the water receptacle is full), between 5-7 days, depending on the brand and recommended use. Disposable car dehumidifiers may come in sets of two or four, depending on the brand and where you buy them.

Where Should I Put My Dehumidifier in My Car?

Using a car dehumidifier for the first time? Rule of thumb: set your car dehumidifier up where it gets maximum airflow (and maximum odor absorption). For that, there are three areas where you can put your car dehumidifier:

  • Dashboard
  • Here, the moisture absorbers are more ideal to use as they are aesthetically more pleasing to the eye than the disposable car dehumidifiers. It can be a challenge to put disposable car dehumidifiers on the dashboard because of their size and bulkiness. A better location is at the back of the rear windshield, in the rearmost row, or in the cargo area.

  • Rear Windshield Shelf
  • Recommended for sedans, hatchbacks, and pickup trucks, mainly. But really, the rear windshield shelf is the perfect spot to put your car dehumidifier, no matter what type of vehicle you have. The AC air flows from front to back, thus allowing your car dehumidifier to absorb moisture and odors better.

  • Trunk (or, for MPVs and SUVs, the back storage area)
  • Car trunks have it bad. It’s where everything goes---groceries, wet goods, wet or sweaty clothes, shoes, and just-used umbrellas, and so on. So it definitely should get one (or even two!) car dehumidifiers. For the cargo areas of vehicles like SUVs and MPVs (that share the same interior space as the main cabin), an additional car dehumidifier should be good.

Depending on the size of your vehicle and whether you have a trunk or an interior cargo space, you may need more than one car dehumidifier. For hatchbacks, Automart.Ph recommends one disposable car dehumidifier only (or add a moisture absorber up in the front on the dash). The same goes for pickup trucks.

For sedans, it would be wise to use one for the cabin, preferably on the rear windshield (and one pillow-type moisture absorber on the dash), and another for the trunk. For AUVs, MPVs, and SUVs, you have the option of going with one moisture absorber on the dash and two in the cargo area. The important thing is that you reduce the excess moisture and dampness that is in your car’s interior space, keeping the air clean and odor-free, and your family safe and healthy.

Interested in more helpful auto articles like these? Automart posts related content like prepping for the rainy season, keeping cabin air clean by changing air filters, and more.

Automart also publishes content that may be useful for prospective clients who may like to know more about what a repossessed car is and the benefits of repossessed cars.

Newbie driver looking to get a used car as your first auto? Check out our tips for 1st-time repo car buyers, and more, on the Automart Blog page.