How to Choose the Size of a Dehumidifier

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Title : How to Choose the Size of a Dehumidifier
Link : How to Choose the Size of a Dehumidifier

Dehumidifier (room humidity reducing device) is equipment placed in the room inside the house to get rid of excess moisture from the air. The right size of the dehumidifier is important to ensure the equipment works effectively in the room or area. For example, large areas with high humidity require several dehumidifier or one dehumidifier big; while the small bathroom only requires one dehumidifier small. Read further to find out how to choose dehumidifier that is right for your needs.

Step

Use the hygrometer to accurately measure the humidity of the room or area.
- Hygrometers can be purchased at retail stores that specialize in home improvement and will provide a percentage of humidity in a particular area or room.
Use special characteristics of the room to determine the level of humidity if you don't have a hygrometer.
- If the room is very wet and has a pool or pool of water, the humidity will be between 90-100 percent and is considered "very wet".
- If the room smells and feels wet, it has mold, mildew, leaks, and water spots, the humidity is between 80-90 percent and classified as "wet".
- If the room feels very wet and you clearly smell mildew, the humidity ranges from 70-80 percent and is considered "very moist". There may be water spots on the wall or floor.
- If the room only smells musty in damp or wet weather, its relative humidity is between 60-70 percent and is considered "moderate damp".
Determine air changes per hour (Air Change per Hour aka ACH) to calculate the air flow needed to get rid of moisture in the room properly.
- If humidity is at a "very wet" level or between 90-100 percent, ACH will be worth "6".
- If humidity is at the "wet" level, or between 80-90 percent, ACH will be worth "5".
- When the humidity of the room is at a "very humid" level or between 70-80 percent, ACH will be worth "4".
- Humidity of a "moderate damp" alias between 60-70 percent, will have an ACH value of "3".
Calculate the area of the room or area that needs to be reduced by humidity.
- The length and width of the room uses a ruler or measuring tape.
- Multiply the length and width of the room to find the size.
- For example, if the room has a length (3 meters) and a width of 4 meters, it means the area is 12 square meters.
Calculate the volume of the room to be removed from the humidity. How to multiply the area of the room with its height.
- For example, if the area of the room is 12 square meters, and the height is 5 meters, that means the volume of the room is 60 cubic meters (5 meters x 12 square meters)
Determine the amount of air flow or cubic feet per minute (CFM) needed to get rid of moisture using room volume and ACH.
- Multiply the volume of the room with ACH, and divide the result by 60.
- For example, if the room volume is 60 meters, and the room is considered "very wet", multiply 60 by 6 to get 360 results. Share 360 with 60 to get the required amount of air flow, which is 6 cubic meters per minute.
Determine the pint of moisture that needs to be taken every day to get rid of the moisture from the room.
- For conditions of moderate humidity, you will need it dehumidifier who can take 5 liters of water from a room of 45 square meters. For every additional 45 square meters, add 2 liters. For example, for a room of 140 square meters, it is needed dehumidifier which is capable of taking 8.5 liters of water.
- For very humid conditions, buy dehumidifier who is able to take 6 liters of water from a 45 square meter room. For each additional 45 square meters, add 2.5 liters.
- For wet conditions, choose dehumidifier which is capable of taking 6.5 liters of water from 4.5 square meters. Add 3 liters for each additional 4.5 meters.
- For very wet conditions, buy dehumidifier who was able to take 7.5 liters of water from 45 square meters. Add 3.5 liters of water for each additional 45 square meters).
Buy dehumidifier that can meet CFM and pint needs.
- Read the manufacturer's label and pack the dehumidifier to determine the right size.
- If CFM levels are much higher than the CFM levels that are supported dehumidifier on the packaging, chances are you need to buy some equipment for the room.
- If CFM levels are in the supported CFM range dehumidifier, you should buy a unit with CFM that is higher than needed, and reduce the frequency of use.