Why is daily ventilation important?

Last updated on March 5, 2026

Daily ventilation is essential for a healthy indoor climate – even in winter.

Short, effective ventilation is better than leaving windows open for long periods of time, as it saves energy and reduces moisture.

We recommend:

  • Ventilate 2–3 times daily
  • Ventilate for 5–10 minutes at a time
  • Create a draft by opening windows in several rooms

Always ventilate thoroughly after:

  • Bath
  • Cooking
  • Cleaning
  • Visits by many people
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