What Do Dehumidifiers Do and How Do They Work?

What Do Dehumidifiers Do?

Dehumidifiers are appliances that reduce moisture in the air and prevent mold growth.

They filter and cool the air to condense moisture, then reheat it before releasing it back into the room.

Dehumidifiers vary in features, tank capacities, water-removal capabilities, and price.

They can be effective after floods, leaks, or water damage, and help maintain comfortable indoor humidity levels.

They can also dry out furnishings soaked by floodwater and prevent dampness and mold in consistently damp homes.

Dehumidifiers improve the comfort and health of your home by removing excess moisture, which can make rooms feel stuffy, attract pests, and cause health issues.

Key Points:

  • Dehumidifiers reduce moisture in the air and prevent mold growth
  • They filter and cool the air to condense moisture, then reheat it before releasing it back into the room
  • Dehumidifiers vary in features, tank capacities, water-removal capabilities, and price
  • They can be effective after floods, leaks, or water damage, and help maintain comfortable indoor humidity levels
  • Dehumidifiers can dry out furnishings soaked by floodwater and prevent dampness and mold in consistently damp homes
  • They improve the comfort and health of your home by removing excess moisture, which can make rooms feel stuffy, attract pests, and cause health issues

Did You Know?

1. Dehumidifiers were initially invented for commercial use in attics to prevent moisture damage to stored goods, rather than for home use.
2. Dehumidifiers can actually help reduce the risk of allergies and respiratory problems by lowering humidity levels, which inhibits the growth of mold and dust mites.
3. The largest dehumidifier to date is the National Mall Dehumidification Project in Washington, D.C., which uses a system that covers over six million square feet to control humidity levels in the museum’s exhibits and preserve historical artifacts.
4. Dehumidifiers can help extend the shelf life of certain foods, such as bread and pastries, by reducing humidity in a bakery or kitchen environment.
5. In 1902, Willis Carrier, the inventor of modern air conditioning, designed a dehumidifier to solve a moisture problem at Sackett-Wilhelms Lithographing and Publishing Company in Brooklyn, New York. This invention led to the development of dehumidifiers as standalone devices.

1. Preventing Mold Growth And Reducing Moisture

Dehumidifiers are essential tools for preventing mold growth and reducing excess moisture in the air. Mold thrives in damp environments and can cause serious health issues in addition to costly damage to your home. Removing excess moisture from the air, dehumidifiers create a less favorable environment for mold to flourish.

Related Post:  How to Keep Basement Dry Without Dehumidifier: Effective Methods

In addition to preventing mold, dehumidifiers also lower the overall humidity in your home. High humidity levels can cause rooms to feel stuffy and uncomfortable. Furthermore, they can attract pests such as termites and cockroaches, and even lead to respiratory issues and allergies. By maintaining an optimal indoor humidity level, typically between 30% and 50%, dehumidifiers ensure a comfortable and healthy living environment.

2. Features And Variations Of Dehumidifiers

Dehumidifiers come in various models with different features, tank capacities, water-removal capabilities, and prices. When selecting the right dehumidifier for your needs, it is important to consider these factors.

Some dehumidifiers use refrigerant technology to cool the air and condense moisture, which is then collected in a tank or drained continuously. Others utilize desiccant materials to absorb moisture from the air before it is expelled. Refrigerant dehumidifiers are more suitable for moderate or warmer climates, while desiccant dehumidifiers are better for cooler climates with higher running costs.

When purchasing a dehumidifier, it is essential to consider the following:

  • Climate of your region
  • Energy efficiency
  • Running costs
  • Water-removal effectiveness
  • Tank size

Additionally, noise levels should be taken into account, especially if you plan to use the dehumidifier in bedrooms or living areas. Room size and water-removal rate should also be considered to ensure optimal performance.

3. Cost And Energy Considerations

Dehumidifiers can range in price from as low as $90 to as high as $1800, depending on the model and features. It is important to choose a reliable dehumidifier that falls within your budget range. On average, a reliable dehumidifier will cost around $725.

In terms of running costs, dehumidifiers can vary significantly. Some models may cost as little as one cent per hour to operate, while others may consume up to 22 cents per hour. Considering the potential long-term usage, it is beneficial to choose an energy-efficient dehumidifier to minimize your electricity bill.

4. Dehumidifiers For Flood And Water Damage

Dehumidifiers are highly effective in addressing the aftermath of floods, leaks, or water damage in a home. After the initial water removal process, the air often remains saturated with moisture, creating an ideal environment for mold growth. Running a dehumidifier for several days following a flood or leak can help dry out the affected areas and prevent future damage.

Related Post:  Do I Need a Dehumidifier for My Basement? Essential Guide to Controlling Moisture, Preventing Damage

Another benefit of using a dehumidifier in flood or water-damaged areas is its ability to assist in drying out soaked furnishings and materials. By removing excess moisture from the air, dehumidifiers expedite the drying process, preventing further damage and the development of mold and mildew.

5. Drying Clothes Indoors And Other Uses

Dehumidifiers can be a great solution for drying clothes indoors, especially when outdoor drying is not possible or during cold and rainy seasons. By reducing the humidity levels in a room, dehumidifiers help clothes dry faster and prevent the growth of musty odors.

Moreover, dehumidifiers have many other uses where excess moisture is a concern. For smaller areas or low-level damp problems, desiccant products like DampRid can be a suitable alternative. These products efficiently absorb moisture from the air and are commonly used in closets, bathrooms, and even caravans.

6. Improving Comfort And Health In The Home

Dehumidifiers significantly improve the comfort and health of your home by regulating indoor humidity levels and reducing excess moisture. High humidity levels can make your home feel uncomfortable and stuffy, leading to a decrease in air quality.

Maintaining an optimal indoor humidity level between 30% and 50% creates a pleasant environment that is less favorable for pests, such as dust mites and cockroaches, while also helping to prevent the growth of mold and mildew. By eliminating these allergens and irritants, dehumidifiers can alleviate respiratory issues, allergies, and other health problems caused by poor indoor air quality.

In conclusion, dehumidifiers play a vital role in preventing mold growth, reducing excess moisture, and improving the overall comfort and health of your home. With various models and features available, it is essential to consider factors such as climate, energy efficiency, running costs, and tank size when selecting the right dehumidifier for your needs. By investing in a reliable dehumidifier, you can ensure a comfortable, healthy, and mold-free living environment.

  • Dehumidifiers regulate indoor humidity levels and reduce excess moisture.
  • Maintaining an indoor humidity level between 30% and 50% is ideal.
  • This creates a less favorable environment for pests like dust mites and cockroaches.
  • Dehumidifiers help prevent the growth of mold and mildew.
  • They alleviate respiratory issues, allergies, and other health problems.
  • Consider factors like climate, energy efficiency, running costs, and tank size when choosing a dehumidifier.
Related Post:  Do I Need a Dehumidifier for My Home?

Check this out:


Frequently Asked Questions

What are the benefits of using a dehumidifier?

One of the benefits of using a dehumidifier is its ability to eliminate allergies and dust mites, providing relief to those who suffer from allergies and improving air quality. By reducing the moisture in the air, dehumidifiers also help prevent the growth of mold and mildew, which can have detrimental effects on both health and property.

Another advantage is that dehumidifiers help protect valuable belongings in the home by preventing warping and rusting caused by excess moisture. They also help eliminate smells and prevent condensation, which can lead to damage to electronics. Overall, the use of dehumidifiers promotes a healthier and more comfortable environment while safeguarding both the health of individuals and the longevity of possessions.

Is it OK to sleep in a room with a dehumidifier?

Absolutely, it is absolutely safe to sleep in a room with a dehumidifier. In fact, it can even enhance the quality of your sleep by creating a more comfortable and conducive environment. If you’re concerned about noise levels, opt for a compressor-free model like the DNC65, specifically designed for the bedroom to ensure a peaceful slumber. So go ahead, rest assured that a dehumidifier will be a beneficial addition to your sleep sanctuary.

When should you use a dehumidifier?

A dehumidifier should be used whenever your home feels excessively humid. This is particularly important during the summer months when humidity levels tend to rise and can lead to the growth of mold, mildew, and bacteria. By running a dehumidifier, you can maintain a comfortable and healthy indoor environment by effectively reducing moisture levels.

Are dehumidifiers good for your skin?

Dehumidifiers offer potential benefits for your skin by reducing irritants in the air and decreasing itchiness. By eliminating dust and particles that can cause skin irritation, dehumidifiers create a more comfortable environment for your skin. Additionally, the removal of excess humidity can contribute to protecting your sheets, clothing, and electronics from potential damage, ensuring a healthier and safer environment overall.

References: 1, 2, 3, 4