High humidity in apartments is a common challenge, especially in smaller spaces where moisture from daily activities accumulates quickly. The good news is that reducing indoor humidity doesn't require expensive equipment or major renovations. With the right approach, you can significantly improve your indoor air quality and comfort.
This guide covers practical, effective methods to reduce humidity in your apartment, ranging from simple behavioral changes to equipment options for persistent moisture issues.
Understanding Your Humidity Level
Before taking action, it helps to know your current humidity level. Indoor humidity between 30-50% is generally considered comfortable for most people. Above 60%, you may notice condensation, stuffiness, or musty odors.
A simple hygrometer, available for under $15, can tell you the exact humidity level in different rooms. This allows you to track whether your efforts are working and identify which areas need the most attention.
Quick check: If you see condensation forming on windows, especially in the morning, your humidity is likely above 60%.
Improve Ventilation
Ventilation is the most effective and often overlooked method for reducing humidity. Moving air helps moisture escape rather than settling in your living space.
Open Windows Strategically
Opening windows creates airflow that carries humid air outside. However, timing matters. Open windows when outdoor humidity is lower than indoor humidity, typically in the morning or evening during warmer months. In winter, brief ventilation periods help exchange moist indoor air without losing too much heat.
Use Exhaust Fans
Bathroom and kitchen exhaust fans exist specifically to remove humid air. Run the bathroom fan during and for 15-20 minutes after showers. Use the kitchen exhaust while cooking, especially when boiling water or using the dishwasher.
Create Cross-Ventilation
Opening windows on opposite sides of your apartment creates a natural breeze that moves air through the entire space. Even partially open windows on opposite walls can create effective airflow.
Reduce Moisture Sources
Much of the humidity in apartments comes from daily activities. Reducing these sources can make a significant difference.
Cooking Practices
Cover pots when boiling water. Use lids on pans when possible. These simple habits prevent large amounts of steam from entering your air. If your stovetop doesn't have an exhaust fan, consider placing a portable fan near the stove to direct steam toward an open window.
Shower and Bath Habits
Shorter showers produce less steam. Slightly cooler water temperatures also reduce the amount of moisture released. Always run the exhaust fan and consider leaving the bathroom door closed during and after showering to contain moisture.
Drying Clothes
Air-drying clothes indoors releases significant moisture. If possible, dry clothes outdoors or use a dryer that vents outside. If you must dry clothes inside, do so near an open window or in a room with good ventilation.
Plants
Indoor plants release moisture through transpiration. If you have many plants and struggle with humidity, consider grouping them in one well-ventilated area or reducing their number temporarily.
Use Moisture Absorbers
For mild humidity issues, passive moisture absorbers can help reduce ambient moisture without electricity.
Desiccant Products
Products containing calcium chloride or silica gel absorb moisture from the air. Place them in closets, bathrooms, or under sinks where moisture tends to accumulate. These need regular replacement but are inexpensive and require no maintenance.
Natural Options
Rock salt, charcoal briquettes, and baking soda can absorb some moisture. While less effective than commercial products, they're readily available and cost almost nothing to try.
Consider a Dehumidifier
For persistent or severe humidity problems, a dehumidifier may be necessary. These appliances actively remove moisture from the air and collect it in a reservoir.
Small, portable dehumidifiers work well for individual rooms. Look for models with automatic shutoff when the reservoir is full, and consider one with a continuous drain option if you don't want to empty it manually.
Running a dehumidifier costs money in electricity, so try passive methods first. If those aren't enough, a dehumidifier becomes worthwhile for comfort and protecting your belongings from moisture damage.
Address Air Conditioning
If you have air conditioning, it naturally removes some humidity from the air as it cools. Running your AC, even at a moderate temperature, can help control humidity during warm months.
Make sure your AC unit drains properly. Blocked drain lines can cause the unit to add moisture back into your apartment rather than removing it.
Check for Leaks and Seepage
Sometimes high humidity comes from water entering your apartment from outside. Check around windows, under sinks, and in corners for signs of leaks or seepage. If you find water intrusion, report it to your landlord or building management for repair.
Maintain Consistent Habits
Humidity control works best as an ongoing practice rather than a one-time fix. Consistent ventilation habits, mindful cooking and showering practices, and regular monitoring keep humidity levels stable.
Remember: It's easier to maintain comfortable humidity than to reduce very high humidity. Small daily habits prevent bigger problems.
When to Seek Help
If you've tried these methods and still struggle with humidity, consider consulting your building management. There may be ventilation issues, building envelope problems, or HVAC system concerns that require professional attention.
Persistent humidity despite your best efforts often indicates a problem beyond your control as a tenant. Document the issue and communicate with your landlord about potential building-level solutions.