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Everything You Need to Know About Dehumidifiers


When we think about air, we don’t often correlate it with water. Although both elemental, they’re typically separate considerations in the mind, despite the two usually being intimately linked. We speak, of course, about the humidity in the air around us.

Naturally, the air has a relative humidity of around 35 to 40 percent. This is the level in which the human body feels most comfortable and the level in which we’re most productive within. However, when relative humidity pushes higher than that, a number of issues can be found, including discomfort, damage to property, respiratory illness and much, much more.

That’s where dehumidifiers come in. They work to remove excess water in the air, with commercial models designed to hit extremely specific humidity levels to aid in manufacturing.

But what do you need to know about dehumidifiers? Join us as we share everything you need to know.

How do Dehumidifiers Work?

There are two main types of dehumidification technology in use today; refrigeration dehumidification and absorption dehumidification.

Put simply, refrigeration dehumidifiers cool the air over cold pipes (which have an ice-cold coolant running through them). The moisture in the air is then turned into water droplets, which are collected in a tray in the bottom of the machine for later removal. These machines are often used in homes rather than in commercial settings.

Absorption dehumidifiers, on the other hand, draw moist air in through a duct, which is then moved past a large rotating wheel constructed from water-absorbing material, which pulls the moisture from the air. As the newly dried air leaves, heated air is pulled in and blown across the water-absorbing material, drying it out. The hot, wet air is now blown out through an exhaust duct.

Absorption-based systems are much more efficient and are able to get humidity levels down to extremely low levels, which can be vital in manufacturing.

Do you Need a Dehumidifier?

The question of whether you need a dehumidifier is one that, often, can be answered by looking around you. In a home environment, humidity can be caused by things like poor ventilation in kitchens, basement areas, drying laundry and more.

A sure sign of needing a dehumidifier is looking for condensation on windows and damp appearing on your walls. If you have either of these issues, it could be time to invest in a dehumidifier.

For businesses, it’s imperative that you hire a professional to assess your need for dehumidification. Many industries from food and drink manufacturing to chemical, drug and packing industries have unique requirements for dehumidifiers, so don’t get caught out.