The most effective way to remove moisture from your house is to use an appropriately sized dehumidifier to dry the air and exhaust fans in moisture-prone rooms like kitchens and bathrooms. For immediate relief, use box fans to improve cross-ventilation by blowing moist air out of open windows.
To lower your home's humidity fast, turn on your Air Conditioner to actively pull moisture from the air, and run a portable dehumidifier in the most humid rooms. Immediately close all windows and exterior doors to prevent hot, humid outdoor air from entering.
To draw moisture out of a room, use a dedicated dehumidifier, or natural absorbers like DampRid, calcium chloride, and baking soda. Active methods include ventilation with fans, air conditioning, and placing desiccants like silica gel in enclosed spaces.
Rock salt: Place bowls of rock salt in damp areas like closets or basements. It draws in moisture and requires no energy. Charcoal briquettes: Like rock salt, they absorb humidity and can be placed discreetly around the home.
The fastest and easiest way moisture moves around your home is through uncontrolled airflow (air currents). Warm, moist air is drawn from high-pressure areas to low-pressure areas, carrying water vapor through any available holes, cracks, and gaps in your walls, floors, and ceilings.
The cheapest and most effective homemade moisture absorber uses calcium chloride (sold as bulk driveway ice melter) combined with a simple two-bucket or colander-over-bowl system. This DIY approach costs a fraction of commercial products like DampRid and works identically to pull water from the air.
Moisture in a house is primarily caused by everyday human activities, poor ventilation, and unwanted water intrusion. Excess humidity can lead to condensation, mold, and damage if left unaddressed.
Not only can baking soda help remove unwanted odors from your home, but it also has a high water absorption capacity, which can remove moisture in wet air. Simply leave a bowl of baking soda in a room with excess humidity. The bigger the room, the more baking soda you'll need.
Moisture is drawn out by desiccants (moisture absorbers), mechanical appliances, and proper air circulation. The specific agent depends on what you are drying.
So, why is your house so humid, and what causes high humidity indoors? The short answer is that more moisture is being trapped indoors than your HVAC system can remove. Air leaks, poor ventilation, or an air conditioning system that's not working correctly can all exacerbate the issue.
Here are seven practical tips for reducing humidity in your home without a dehumidifier in your home naturally, ensuring your comfort even on the muggiest days.
Making a homemade dehumidifier is quick and easy. For small spaces like closets, simply leave out a bowl of baking soda or a container of charcoal. For larger areas, create a powerful moisture trap using two buckets and rock salt or a desiccant like calcium chloride.
Direct warm air at small damp patches to lift off surface moisture and condensation. Run a dehumidifier to remove excess moisture and address the issue of moist air. Improve ventilation by opening windows so that you have plenty of fresh air.
To find where moisture is coming from, trace water damage back to its highest point or primary source. Track potential leaks using a moisture meter to map dampness, or use the water meter test to determine if your issue is a hidden plumbing leak or exterior water intrusion.
Produce less moisture
Avoid drying clothes indoors or, if you have to, dry them on a clothes airer in the bathroom with the door closed and either an extractor fan on or with a window open. Ventilate tumble driers to the outside (never into the home). Cover pans when cooking and turn down to a simmer when they boil.
The ideal humidity level for sleeping is between 30% and 50%, with 40% to 45% being the ultimate sweet spot. This range maximizes physical comfort while preventing the buildup of harmful allergens in your bedroom.
Several common household items can act as natural moisture absorbers. Items like baking soda, rock salt, charcoal briquettes, and leftover silica gel packets effectively pull humidity from the air in smaller, enclosed spaces like closets, cabinets, and basements.
Choose DampRid for small, enclosed spaces without electricity, or electric dehumidifiers for continuous, whole-room humidity control. DampRid is cheap and passive, but dehumidifiers cover large areas, remove moisture much faster, and don't require constant refills.
To quickly dehumidify a room, turn on your air conditioner to actively condense moisture, or use exhaust fans in bathrooms and kitchens. If the outside air is cooler and drier, open windows and use a fan pointing outward to force moist indoor air out.
You can substitute a dehumidifier with natural moisture absorbers like calcium chloride, silica gel, or activated charcoal. You can also use household items like baking soda or rock salt, or adjust your daily habits by improving ventilation, using your air conditioner, and running exhaust fans.
Running an AC for a few hours can help maintain a comfortable humidity level. Silica gel packs: Place them in closets or drawers to absorb moisture. Charcoal briquettes: These natural dehumidifiers can help reduce dampness in small spaces. Baking soda: Keep an open box in humid areas to absorb moisture and odours.
Use dehumidifiers and air conditioners, especially in hot, humid climates, to reduce moisture in the air, but be sure that the appliances themselves don't become sources of biological pollutants. Raise the temperature of cold surfaces where moisture condenses. Use insulation or storm windows.
Several common signs that conditions of excessive moisture exist in the home environment include the following:
5 places to never put a dehumidifier – experts urge you to avoid these spots or risk making your damp problems worse
Mold is generally at its worst from early spring through early fall (specifically July through October), peaking during the warmest and most humid months. Mold thrives in warm temperatures (60∘F to 80∘F) combined with relative humidity levels above 60%.