8 signs of poor ventilation in the house
- Fog and condensation on the inside of windows
- Fog on bathroom mirrors remains for more than half an hour after showering
- The air in the house feels stale and smells bad
- Headache without known cause
- Cooking odors spread throughout the house
- Allergies and runny nose and eyes
- Poor sleep
- Dry mucous membranes and irritation in ears, nose, and throat
