The Ultimate Guide to Buying a Dehumidifier: 5 Essential Criteria You Need to Consider

The use of a dehumidifier is an effective way to keep your home dry and protect your health. By reducing moisture levels, dehumidifiers create an environment that is hostile to mold, mildew, and other allergens, thus improving the air quality and creating a healthier living space.

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Vietnam’s tropical monsoon climate is characterized by hot and humid weather. During the humid monsoon season or on rainy days, the air humidity levels can get extremely high, negatively impacting human health, especially for children, the elderly, and those with respiratory issues. Prolonged exposure to such environments can also damage electronics and wooden furniture and cause paint to peel.

Dehumidifiers help balance indoor air humidity through a condensation mechanism in their cooling coils. They not only reduce humidity but also filter the air, creating a safer living environment.

By using a dehumidifier, you can keep your home dry, protect your health, and prevent mold and mildew growth on wooden furniture. An additional benefit of dehumidifiers is their ability to dry clothes during rainy and humid seasons.

5 Golden Criteria for Buying a Dehumidifier

After replacing my dehumidifier three times, I’ve learned these five essential considerations when purchasing one. I hope my experience will help others make a more informed decision.

– Choose the Right Capacity for Your Room Size

To ensure optimal performance, select a dehumidifier with a capacity and size suitable for your room. For smaller rooms less than 15 square meters, a dehumidifier with a capacity of 4 to 8 liters per day is ideal.

For larger rooms between 15 and 20 square meters, opt for a unit with a capacity of 7 to 14 liters per day. And for rooms exceeding 20 square meters, it’s best to choose a dehumidifier with a capacity of 6 liters per day or more.

– Consider the Cooling Material

The quality of a dehumidifier depends on its compressor, cooling material, evaporator, and condenser, with the cooling material being of utmost importance.

Most dehumidifiers on the market use aluminum coils for the evaporator and condenser, which can be unstable, leading to inconsistent humidity control, shorter lifespans, and potential damage to system components and the compressor.

Therefore, it’s crucial to pay attention to the cooling material. Look for a unit with high-quality cooling material, preferably R410A, the same type of refrigerant used in air conditioners.

– Additional Functions

Focus on smart humidity control, which automatically adjusts the operating mode based on indoor humidity levels and maintains a comfortable humidity range for human health.

Even better, look for a unit with additional functions like clothes drying and air purification, providing even more benefits to your home environment.

– Noise Reduction

Dehumidifiers produce noise during operation due to the fan and compressor. Therefore, it’s essential to consider a unit with noise reduction features. Excessive noise can disturb your peace and rest, so aim for a dehumidifier with a noise level below 45 dB.

– Price Consideration

Dehumidifier prices vary, ranging from over 300,000 VND for mini dehumidifiers to over 9 million VND for high-quality units. Choose a product that fits your budget, and consider well-known, reputable brands that offer reliable warranty services.

Frequently asked questions

A dehumidifier helps to reduce humidity levels in your home, which can cause mold and mildew growth, leading to health issues such as allergies and asthma. It also helps to eliminate musty odors and improve the overall air quality in your home.

The first criterion is to consider the capacity and choose a unit that is suitable for the size of your room or home. Second, look for a dehumidifier with adjustable humidity settings so you can control the moisture levels. Third, opt for a unit with an automatic shut-off feature to prevent overflow. Fourth, consider additional features such as a timer, multiple fan speeds, and a washable air filter. Lastly, don’t forget to check the noise level to ensure a quiet operation.

Dehumidifiers are typically sized based on their pint capacity, which refers to the amount of moisture they can remove from the air in a 24-hour period. For an average home, a 30-pint capacity dehumidifier is suitable for small to medium-sized rooms, while a 50-pint capacity or higher is recommended for larger spaces.

There are two main types of dehumidifiers: refrigerant dehumidifiers and desiccant dehumidifiers. Refrigerant dehumidifiers work by condensing moisture on a cold coil, similar to how an air conditioner works. Desiccant dehumidifiers use a rotating wheel or drum coated with a moisture-absorbing material to remove humidity from the air. Desiccant dehumidifiers are typically more portable and suitable for lower temperatures.

Place the dehumidifier in an area with good air circulation to allow for efficient moisture removal. Ensure it is placed on a flat, level surface and maintain a minimum clearance of a few inches from walls and furniture to prevent blocking air intake and outlet vents. Additionally, avoid placing it in direct sunlight or near heat sources.
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