Monitor Your Indoor Humidity
Keeping indoor humidity in check is one of the best ways to prevent mold problems before they start.
Use a hygrometer, a meter that measures moisture, to monitor your home’s humidity levels. You may have gotten a free hygrometer from us if we’ve visited your home, or you can buy one that’s inexpensive. The cheap (or free) ones aren’t the most accurate instruments in the world, but they’re good enough to get you in the ballpark.
What Do the Numbers Mean?
0%
30%
55%
60%
75%
100%
Below 30%
Too dry – may cause respiratory issues
30% – 55%
Ideal range for comfort & health
55% – 60%
Acceptable but monitor closely
60% – 75%
Too high – mold risk increases
Above 75%
Danger zone – mold growth likely
Quick Humidity Checklist
Do these things to monitor your humidity if you think it might be high:
- Check your hygrometer daily
- Look at the reading on your hygrometer. Check at the same time each day for consistency.
- Watch for patterns
- Consistently high readings (above 60%) over several days indicate a problem.
- Note the temperature
- Warm air holds more moisture. High humidity + warm temperatures = ideal mold conditions.
- Take action when needed
- Use exhaust fans, run a dehumidifier, or call us if levels stay elevated.
When to Call IMR
Watch for warning signs and call or text 317-867-4766 when one of these occur:
- Humidity Consistently Above 60%
- If your hygrometer regularly shows readings above 60%, even with dehumidifiers running, something is adding moisture to your home.
- Musty Odors
- A persistent musty, earthy smell often indicates hidden mold growth, even if you can’t see it.
- Recurring Condensation
- Water droplets on windows, walls, or pipes that keep coming back even after wiping dry.
- Water Intrusion
- Any water entering your home from leaks, flooding, or seepage needs immediate attention to prevent mold.
Quick Tips for Lower Humidity
- Use your exhaust fan – Run bathroom and kitchen fans when cooking, showering, or doing laundry
- Run your AC – Air conditioning removes moisture as it cools. Set it to “Auto” not “Fan.”
- Fix leaks promptly – Even small drips can add significant moisture over time.
- Ventilate crawlspaces – Proper venting prevents moisture buildup in foundational areas.
Note: Not all crawlspaces were designed to be ventillated. Do not add ventillation to an enclosed, conditioned crawlspace. If you are unsure what type of crawlspace you have, or want to discuss options to dehumidify your crawl space, call or text Indiana Mold Remediation at 317-867-4766.
Not Sure What You're Seeing?
That's okay! We're here to help. Whether it's a question about your humidity readings or you're noticing warning signs, give us a call.
Schedule My Free Consultation