License #1041772

Work Time

24/7 service

Call Us Today

(855) 999-4417


Ideal Humidity Level For Your Home

HVAC Alliance Experts old

Humidity is a measure of the amount of water vapor in the atmosphere. Understanding humidity level in your home and outdoors is very important. Outdoor humidity greatly impacts our environment and all people and animals living in it. It has an effect on the climate and speed at which our planet warms up. Indoors, home humidity level has an impact on our health and the state of our homes.

The big difference between outdoor and indoor humidity is that the latter can be controlled. There are levels of humidity that our homes should have to keep their occupants healthy and their structure safe. Allowing humidity to go above those levels might be dangerous. Let’s focus on that and see how we can properly manage humidity levels in your home.

What Causes Humidity?

There are two levels of humidity that can be harmful to your health and your homes – Low humidity and high humidity. A high humidity level is when the amount of water vapor in your home is higher than recommended, while a low humidity level is the other way around. There are various circumstances that can cause water vapor in your home to rise or fall drastically. To be safe, you should always monitor the humidity levels of your home. A hygrometer is the perfect tool to do that. However, before using this tool, you should know the ideal humidity level for your home and your household.

What Is The Ideal Humidity Level?

There are two ways to decide on what is the ideal humidity level for your home. The first way is by following the recommendations of national institutions such as the consumer product safety commission or the environmental protection agency. These institutions recommend keeping home humidity levels between 30 and 60 percent. The second way is by adjusting indoor humidity to the outside temperature. The table below shows how you set indoor humidity levels in your home depending on the outdoor temperature.


Outside TemperatureRecommended Humidity Level
More Than 50ºFNot more than 50%
Between 20ºF and 50ºFNot more than 40%
Between 10ºF and 20ºFNot more than 35%
Between 0ºF and 10ºFNot more than 30%
Between -10 ºF and 0ºFNot more than 25%
Between -20ºF and -10ºFNot more than 20%
Lower Than -20Not more than 15%


This table will help you adjust the humidity of your homes according to your level of comfort. If the humidity level in your home is set and you notice that it has a negative effect on your health or your home’s structure, try to raise or lower your it. Using humidifiers and dehumidifiers to achieve that. You can also call an expert to check your home and see what causes abnormal humidity levels in your home.

Causes Of High Humidity.

Shower Steam:

When taking a hot shower in winter, the steam does not only spread in your bathroom but also escapes to the neighboring rooms. This is one of the things that causes a rapid increase in humidity in your home. It can worsen if your bathroom does not have a vent to take out steam or a window to let it out. In winter, it can cause real problems.

Gas And Propane Furnace:

On a normal day, when your gas or propane furnace keeps your home at a normal temperature, there is no danger of high humidity. The problem comes when your home is overheated. Heat is favorable to the accumulation of water vapor. The more it is hot, the more humidity rises in your home.

Steam From Cooking:

When cooking a dish on your stove or using your oven, steam is liberated, which causes humidity to rise. As with shower steam, cooking steam is mostly a problem in the winter. During extreme cold seasons, people do not often leave their windows open. By leaving their windows closed, they favor water vapor accumulation.

Drying Laundry Indoors:

There are times when it is impossible to dry our clothes outdoors. Most of the time due to the weather. The only solution then is to dry them indoors. When drying your clothes indoors, the problem is water that evaporates from clothes into the air. This evaporation causes humidity levels to rise drastically. 

Poor Ventilation: 

Home ventilation systems are important to circulate air in and out of your home. Working hand in hand with your heating and cooling system, they help manage humidity levels in your home by allowing warm and cool air to move out of your home freely. That is why a ventilation system that is not able to perform its duty perfectly will result in a rise in humidity in your home.

Causes Of Low Humidity.

Low humidity in your home is the consequence of a drop in temperature. Cold air can’t hold as much moisture as hot temperatures. So, you are more likely to have low humidity levels during the winter or when your AC’s thermostat is set at the lowest temperature. 

Manage Your Home’s Humidity Levels With HVAC Alliance Expert Services.

One way to keep the humidity levels in your home at conducive levels is by taking care of your ducts. Having an expert clean your air ducts yearly and making sure your air conditioning unit is in perfect working condition ensures that your home stays comfortable and healthy for your household. At HVAC Alliance Expert, we offer effective air duct and air conditioning repair and maintenance services. Call us now and get a free estimate for any HVAC service. 

Our experts can reach your home today. They have the training and experience to provide you the right solution to any heating and air conditioning issues. Schedule an appointment with one of our experts by calling us at (855) 999-4417 or by leaving a message


news subscription

Keep up to date with all the latest and interesting company news!

Thank You


Our manager will contact you to clarify the requirements.