A-Z Guide to Using a Dehumidifier Correctly: Why Does 70% RH Still Feel Damp?

You've just invested in a dehumidifier, hoping to end those uncomfortable, damp days. You plug it in, set the display to 70% RH, but after hours of operation, the room still feels humid. You start to doubt the quality of the machine?

Don't jump to conclusions! In reality, up to 70% of cases where a dehumidifier doesn't perform as expected stem from a common misunderstanding: setting the humidity parameter incorrectly. This A-Z guide from DeAir will help you understand and use your dehumidifier in the most effective way.

Understanding the 'Heart' of a Dehumidifier: Setting the %RH

This is the most important principle to remember:

The number you set on the screen is the TARGET HUMIDITY you want to maintain in the room, NOT the machine's operating power level.

The dehumidifier will work to bring the room's air humidity down to the level you've set, then it will automatically shut off to save energy.

• EXAMPLE 1: You set it to 70% RH. The machine will run until the room's humidity reaches 70% and then stop. However, 70% RH is still a very high humidity level, a condition where mold can begin to grow. Therefore, you will still feel that the room is damp.
• EXAMPLE 2: You set it to 50% RH. The machine will run continuously to lower the humidity from a high level (e.g., 80-90%) down to 50% before automatically shutting off. At 50% RH, the air will feel dry, fresh, and completely comfortable.

What Is the Ideal Humidity Level for Each Need?

So, what is the best humidity level to set? It depends on your needs:

• For daily living spaces (living room, bedroom): A level of 50% - 60% RH is ideal. This is the range that feels most comfortable, is good for the respiratory system, and protects wooden furniture, leather goods, and electronic devices.
• For peak humid seasons or thorough mold prevention: Set the level at 40% - 50% RH. At humidity levels below 50%, mold and bacteria can hardly grow.
• For drying clothes: Select the dedicated drying mode (Dryer/Laundry) or set the humidity to the lowest level (35-40%) to dry clothes as quickly as possible.

Tips for Using a Dehumidifier Effectively and Saving Energy

• Close all doors and windows: Always keep the room sealed when the machine is operating to prevent moist air from outside from entering, which would force the machine to run continuously and consume more power.
• Place the unit correctly: Position the dehumidifier about 20-30cm away from walls and do not block the air intake and outlet vents to ensure the best air circulation.
• Use with a fan: Turning on a fan on a low setting helps circulate the air in the room, bringing moisture to the dehumidifier faster and increasing its efficiency.

Proper Maintenance - The Key to a Durable Machine

To keep your dehumidifier running at peak performance and ensure a long lifespan, don't forget regular maintenance:

• Clean the air filter: Regularly (every 1-2 weeks), remove the air filter, wash it clean, and let it dry completely. A dirty filter will obstruct airflow, reducing dehumidifying efficiency and wasting electricity.
• Clean the water tank: Empty and clean the water tank frequently. Avoid letting dirty water sit for long periods, as this creates an opportunity for mold and bacteria to grow inside the machine.
• Do not reuse water from the dehumidifier: This water contains dust, bacteria, and is not safe for any purpose.

Need More Advice? DeAir Is Always Ready to Help

Understanding and using your dehumidifier correctly will maximize the many benefits it provides. If you have any questions about operation or need advice on choosing the right product, from Olmas residential dehumidifiers to industrial models, do not hesitate to contact DeAir.

CONTACT US FOR TECHNICAL CONSULTATION
DEAIR JOINT STOCK COMPANY
Email: operation@deair.com.vn
Hotline: +84 925 977 579 (Ms. Tam)
Website: deair.com.vn/en