Why Have a Humidifier at Home?

The humidity in the air directly affects your comfort, health, and even the longevity of your home. A humidifier helps maintain an optimal humidity level and prevents problems caused by air that is too dry or too humid.

What is Relative Humidity?

Relative humidity (RH) measures the amount of water vapor in the air and is expressed as a percentage:

• Dry air = low percentage

• Humid air = high percentage

Maintaining a balanced humidity level (ideally 30% to 45%) is important to:

• Protect your health (skin, eyes, respiratory system)

• Prevent condensation and mold

• Preserve your wooden furniture and instruments

The Three Types of Humidifiers

Warm Mist Humidifiers

• Heat water to produce steam

• Effective but use more electricity and can be hot to touch

Ultrasonic Humidifiers

• Produce a fine mist using ultrasonic vibrations

• Quiet and energy-efficient, but may leave white mineral deposits if water isn’t filtered

Evaporative Humidifiers (recommended for optimal comfort)

• Work naturally: a fan passes air through a wet filter

• Advantages:

  • Safe and effective

  • Require minimal maintenance

  • Use the least energy

  • Distribute moisture over a larger area

  • Avoid over-humidifying or hot steam

  • Leave no mineral residue

• Ideal for creating a comfortable, healthy environment all winter long

Recommended Indoor Humidity by Outdoor Temperature

Tip: Good air circulation also helps prevent condensation on windows.

Source: Canada Mortgage and Housing Corporation (CMHC)