How to choose and use a dehumidifier effectively

Do you find the air in your home too humid or heavy? A portable dehumidifier can bring you added comfort. Here’s everything you need to know to choose and use the right model for your need

The ideal humidity level

Ideal indoor humidity levels vary according to the season: around 30% in winter (-15°C) and up to 60% in summer. Too high a level can cause health problems (allergies, asthma) and damage to your home (mold, stains). Using a dehumidifier, in addition to your kitchen hood or bathroom fan, can help regulate humidity effectively.

How to choose the right dehumidifier

Before you buy, consider the following criteria:

• Price: Varies according to capacity and features.
• Capacity: Measured in liters or U.S. pints per day. For a basement, opt for a model capable of removing between 12 and 35 liters of water daily. For other rooms, calculate 1 quart (0.5 liter) per 150 sq. ft.
• Energy efficiency: Choose an Energy Star-certified model with good efficiency. Check the EnerGuide label for energy consumption.
• Practical features: look for a model with electronic controls, built-in hygrometer, automatic shut-off in the event of overflow, and the option of connecting a hose to drain water directly.

How a dehumidifier works

A dehumidifier uses a system similar to that of an air conditioner. Ambient air is drawn in and cooled by a coil, condensing moisture into droplets. The dried air is then reheated and returned to the room, helping to maintain optimum humidity levels.

Maintenance and tips for optimum use

To get the most out of your dehumidifier:

• Clean filters every two weeks at first, then as needed.
• Vacuum the coils at least twice a year, in spring and autumn.
• Keep windows closed when humidity outside is high or when it’s raining..

To avoid being disturbed by noise, place the unit in a secondary room, such as a laundry room.
With these tips, you can not only improve the air quality in your home, but also extend the life of your dehumidifier and protect your home from the harmful effects of humidity.