Top 10 Things to Do When Its Humid in Your Home

1. Invest in a moisture meter/humidistat to monitor levels in your home.
2. Consider buying a dehumidifier.
3. Run the air conditioning.
4. Use fans to keep air moving.
5. If no AC, keep your house ventilated – windows open, exhaust fans on, etc.
6. Try taking colder, shorter showers.
7. Plants release moisture so consider temporarily moving them outside.
8. Replace your furnace/AC filters.
9. Line dry laundry outside.
10. Put charcoal briquettes in a basket in your home to absorb moisture.

Cited:

http://www.andatech.com.au/resource/reduce-indoor-humidity-without-dehumidifier/http://www.criticalcactus.com/reduce-home-humidity/