Dehumidifiers

A dehumidifier is a household appliance that minimizes the humidity level in air, which in turn also reduces health problems to a good extent. Generally, humid air is the reason for mildew and mold, which affects our health adversely. Very high level of humidity is also distasteful for health. Most of the insects such as cockroaches, fleas, and clothes moths grow at a faster rate in areas with higher humidity levels. The preferable humidity range is 30 to 50%. These dehumidifiers are used in industrial chambers to maintain required humidity level.

Dehumidifier Intro
Dehumidifier Intro

History of Dehumidifier

In 1980, the first mass-produced domestic dehumidifier was invented in UK by John Elliott MBE DL.

Types of Dehumidifiers

Generally, there are three types of home dehumidifiers;


• dehumidifying ventilators,
• chemical absorbent dehumidifiers, and
• heat pump dehumidifiers.

Dehumidifying Ventilators
Dehumidifying Ventilators


Dehumidifying ventilator has an exhaust fan and sensor controller. The sensor controller stimulates the setup whenever humidity in room reaches a particular level. These ventilators are not very effective during muggy weather conditions because they take exterior air in to the room. Most often, these dehumidifiers are utilized for basements.


In warm climates, Chemical absorbent dehumidifiers work excellently. They utilize a chemical drying desiccant, or agent on a heat exchange wheel to get water particles from air. With the help of this, humid air passes out through vents. Desiccant dehumidifiers utilize much energy. Mostly, these can be used by industries over homeowners.
Chemical absorbent
Chemical absorbent

Heat pump dehumidifiers take out water molecules from air by utilizing a heat pump, which is same as an air conditioner pump. When compared with other dehumidifiers, these heat pump dehumidifiers are really effective.
Heat pump dehumidifiers
Heat pump dehumidifiers

Applications of Dehumidifier

With the help of a dehumidifier, following tasks can be accomplished


• Mold & Fungus Prevention,
• Condensation Prevention,
• Moisture Regain Prevention,
• Corrosion Prevention, and
• Product Drying.


How to Use a Dehumidifier

Before using the dehumidifier, pre-treat the areas for the dehumidifier by cleaning, dusting, and vacuuming.


• Plug in the dehumidifier to experience its effect.
• Tune the dehumidifier to maximum level to eliminate excess humidity in the room.
• Leave the dehumidifier to complete several cycles, eliminating all unnecessary moisture in the air. This may take many hours or even days in particularly damp rooms.
• Adjust the dehumidifier when humidity in the room comes to required level.
• Then keep the knob in that position, which offers comfortable moisture in room.


Working of Dehumidifier


How a Dehumidifier Works Art
How a Dehumidifier Works Art


To understand the working of dehumidifier in an easier manner, here are some figures.


A dehumidifier works just like an air conditioner. First moist or warmer air get in to the dehumidifier and traverses refrigerant cooled coils, making the air’s moisture to concentrate on coils in the machine.


The moisture then attains in a drip bucket or pan for disposal, where the air is a bit reheated prior to discharge. The process of reheat is completed by trapping and utilizing heat created by the energy to reduce the heat. After the air is reheated, the air coming from dehumidifier is warm and dry; and it catches the attention of moisture and improves the efficiency of dehumidifier.

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