Is 70% Relative Humidity Too High?
Yes, it is too high.
What does 70% humidity mean for your home?
A relative humidity of 70% exceeds the recommended indoor maximum of 60%. At this level, the air holds excess moisture which can lead to serious issues in a home.
The Risks of High Humidity
- Mold and Mildew: Above 60%, mold spores can germinate and grow on walls, clothing, and furniture.
- Dust Mites: These microscopic pests thrive in humid environments and are a leading cause of asthma and allergies.
- Condensation: Water may bead up on cold windows or uninsulated pipes, leading to hidden rot and water damage.
How to fix it
You should immediately run your air conditioner or a standalone dehumidifier. Ensure your bathrooms and kitchen are properly ventilated to the outside, and check for any plumbing leaks or damp basement walls.