How Big of a Dehumidifier Do I Need?

The summer climate in many regions of the world is difficult to tolerate, with high temperatures and humidity. People living and working in these areas are in need of dehumidifiers to help them obtain a comfortable environment. When you decide to purchase a dehumidifier, a problem arises in front of you. How to choose a dehumidifier with an appropriate amount of dehumidification?

How to choose a dehumidifier with a proper size?

The size of the dehumidifier you need depends on several factors, including the size of the space you want to dehumidify, the level of humidity in the area, and the specific use case. Here are some general guidelines to help you choose the right size dehumidifier for your needs:

 

Determine the square footage of the room:

Measure the length and width of the room, and multiply the two numbers to get the square footage. 

 

Determine the level of humidity:

If the room is extremely humid, you'll need a larger dehumidifier than if it's only slightly humid. Generally, people will feel comfortable when the RH is among 40-60%. Too high or too low relative humidity will make people uncomfortable and generate mold and mildew.

 

Choose the appropriate pint capacity:

Dehumidifiers are rated by their pint capacity, which refers to the amount of moisture they can remove from the air in 24 hours. As a general rule, you'll need a dehumidifier with a capacity of at least 30 pints for a small room (up to 1,500 square feet), and up to 70 pints for a large room (up to 4,500 square feet).

A dehumidifier with a dehumidification capacity of 20 liters per day is suitable for spaces ranging from 10 to 20 square meters.

A dehumidifier weighing 38 liters per day is suitable for spaces ranging from 20 to 35 square meters.

A dehumidifier with a dehumidification capacity of 58 liters per day is suitable for spaces ranging from 40 to 60 square meters.

A dehumidifier with a dehumidification capacity of 90 liters per day is suitable for an area of approximately 80-100 square meters.

A dehumidifier with a dehumidification capacity of 138 liters per day is suitable for areas of 100-120 square meters.

 

Consider your specific needs:

If you plan to use the dehumidifier in a basement or crawl space, you may need a larger unit with a higher capacity to handle the extra humidity. If you want to use the dehumidifier in a small, enclosed space like a closet or bathroom, a smaller unit may be sufficient. Preair provides the basement crawl space dehumidifier and ceiling mounted dehumidifier for bathroom for sale. The dehumidifiers provided by Preair has different dehumidification capacities for your choice.

 

Preair types of dehumidifiers for sale

It's important to choose a dehumidifier with the appropriate capacity for your needs to ensure that it effectively removes moisture from the air and helps prevent mold and mildew growth.