A dehumidifier is used to remove excess moisture from the air by moving the air over a surface that is cooler than the temperature of the moisture. The moisture is condensed in this process similar to how moisture condenses in a glass. A dehumidifier is an excellent solution for those who suffer from asthma or allergies.



If you live in a home that is too moist, it can pose serious health risks because the moisture can lead to rotting, mold growth, and the growth of microorganisms. Dust mites breed in homes with high levels of humidity. Your nasal passages can become irritated. Those who already have other health conditions will feel the effects worse.

On average, you want your home to have 50% or less humidity. Some people need more or less to be comfortable. If you find condensation in your home on the windows or experience respiratory issues consider lowering the moisture level to 30% and see if you get any relief. You can use a hydrometer to measure the amount of humidity in your home.

There are many types of dehumidifiers to choose from. The more moisture you have in your home the larger size you will need. Some homes need more than one to deal with the moisture effectively. Look for ones that have a two speed fan as they are quieter and more energy efficient. Some dehumidifiers have to be placed by a drain for the moisture to be released. Others have a tub that you manually empty. They both get the job done so that is a personal preference.

It is important that you keep your dehumidifier clean or it will not work properly for you. The filters need to be cleaned at least every two weeks. Each brand of dehumidifier will come with specific cleaning instructions that you need to follow.