The Connection Between Poor Air Quality and Humidity

B & B Cool Air • September 8, 2025

Man playing guitar-shaped thermometer, sweating, with musical notes.

Share this article

Relative humidity (RH) is a percentage expressing the amount of water vapor in the air relative to its temperature. It compares the actual amount of water vapor in the air to the total amount of vapor the air can hold at its current temperature. According to experts, ideal indoor RH is between 30% and 50%. Anything lower than 30% makes a room feel uncomfortably dry. Relative humidity higher than 60% makes a room feel muggy, sometimes to the point where air conditioning can no longer keep you comfortable.

When Relative Humidity Is Too Low

Low humidity dries out your body. It can lead to dehydration as well as dry sinuses, eyes and skin. You or members of your household may be more subject to nosebleeds and problems such as asthma or bronchitis. Your eyes itch all the time, and infections take longer to heal. Low humidity can also hurt your house as wood furnishings warp or crack and wallpaper peels away from the walls. You may also find you’re more subject to stings from static electricity.

When Relative Humidity Is Too High

High humidity creates an environment for pollutants such as mold spores, viruses, bacteria and the pollen that can make someone with allergies feel miserable. Too much humidity makes it harder for the air to circulate, which not only leads to a feeling of oppression but makes it harder for the air to flush out pollutants. Wood is also more likely to rot, and this attracts termites and other pests. A humid indoor space also traps heat and makes it harder to benefit from air conditioning. A vulnerable person might start to suffer from heat cramps or heat exhaustion.

What You Can Do to Achieve the Right Humidity Level

Ways to control the relative humidity level in your home depend on whether it’s too high or too low. First, if you’re not sure what your RH level is, invest in a hygrometer. Then, if you find you have high humidity, you can do the following:


  • Open the doors and windows to equalize the humidity with the outside, and let in fresh air. Turn off the HVAC before you do this.
  • Make sure your air conditioning is working well. Have an HVAC technician check it at least once a year, and be sure to change the filters on schedule.
  • Buy a dehumidifier.


If the humidity is too low, you can:


  • Buy a humidifier.
  • Close up any drafts around doors and windows with weather stripping,
  • Place some houseplants around the room.

Call Us to Learn More About Indoor Air Quality

If your home feels too humid or too dry, you might need the professional help. To improve the quality of your indoor air in Lehigh Acres, FL, contact our HVAC technicians at B & B Cool Air.

Recent Posts

By Corey Creekmore November 18, 2025
HVAC Services: What to Do When Your Florida AC Breaks Down
By B & B Cool Air November 13, 2025
Professional air conditioning repair services in Fort Myers, FL restore comfort and efficiency to your home cooling system year-round.
By B & B Cool Air October 20, 2025
When it comes to saving money on home expenses, cutting utility costs and being more energy efficient is usually the way to go. What some homeowners may not know, however, is how improving indoor air quality can save them money. From reducing medical expenses to lowering energy bills, here’s why improving your indoor air quality can save you money in the long run. 
By B & B Cool Air October 20, 2025
As we head indoors more to escape the winter chill, indoor air quality becomes a priority. If you’re looking to give a holiday gift that will help someone achieve clean indoor air, there are some great options to consider. Whether you invest in an air purifier or houseplants, helping someone improve their indoor air shows you care.
By B & B Cool Air October 6, 2025
Most people check the daily air quality outdoors to ensure they can safely engage in their planned activities. But the indoor air quality (IAQ) is equally important. Here’s how to know if the air in your house is causing health problems. 
By B & B Cool Air September 22, 2025
Indoor air quality impacts your health and well-being, making it an important consideration this fall and throughout the year. When you clean your home this fall, you can support your indoor air quality by using some of these helpful tips. 
By B & B Cool Air February 27, 2024
Maximizing the energy efficiency of air conditioning (AC) systems is not just about saving on energy bills; it’s also about contributing to a more sustainable environment. Whether for residential homes or commercial spaces, maintaining an efficient AC system requires attention to detail and regular care. 
By B & B Cool Air February 1, 2024
Hey there, fellow Floridians! Are you ready to kick your home comfort up a notch? Well, hold onto your flip-flops because we’re about to dive into the world of Fujitsu Split Terminal Heat Pumps! Picture this: a world where your home is always the perfect temperature, where you can enjoy whisper-quiet relaxation without a care in the world, and where the air you breathe feels as fresh as a cool ocean breeze. Sounds like a dream, right? Well, with Fujitsu Split Terminal Heat Pumps, it’s not just a dream – it’s your new reality! So, grab your sunglasses and get ready to discover how these innovative systems are about to make your life a whole lot more comfortable, efficient, and downright awesome. Let’s turn up the heat on home comfort, Southwest Florida style! 🌴☀️ Renowned for their exceptional energy efficiency, Fujitsu Split Terminal Heat Pumps revolutionize heating and cooling operations through their innovative design and advanced technology. These pumps utilize state-of-the-art heat transfer mechanisms to maximize efficiency, ensuring that every bit of energy is utilized effectively. Unlike traditional systems that rely on fossil fuels, Fujitsu Split Terminal Heat Pumps harness ambient air or ground heat, allowing them to operate with minimal energy consumption. The key to their energy efficiency lies in their ability to extract heat from the surrounding environment and transfer it to the desired space. During the cooling mode, the pumps extract heat from indoor air and release it outside, effectively cooling the interior. Conversely, during the heating mode, they absorb heat from outdoor air or the ground and transfer it indoors, providing warmth even in colder climates. This innovative approach not only ensures optimal comfort but also results in significant energy savings for homeowners. By reducing reliance on traditional heating and cooling methods, Fujitsu Split Terminal Heat Pumps help lower utility bills and minimize environmental impact. Additionally, their energy-efficient operation qualifies many models for various energy rebates and incentives, providing further cost savings for homeowners. In Southwest Florida, where temperatures can soar during the summer months, the energy efficiency of Fujitsu Split Terminal Heat Pumps is particularly beneficial. With their ability to provide reliable cooling while consuming minimal energy, these pumps offer a sustainable solution for maintaining indoor comfort without breaking the bank. Whether you’re looking to upgrade your existing HVAC system or install a new one, Fujitsu Split Terminal Heat Pumps are a smart choice for homeowners seeking energy-efficient heating and cooling solutions.