Home > Town Appliance Official Blog > Air Purifiers vs. Dehumidifiers Explained

Air Purifiers vs. Dehumidifiers Explained

Air Purifier vs Dehumidifier
Published by Town Appliance on

Welcome to our comprehensive guide on the differences between air purifiers and dehumidifiers. If you're looking to improve your indoor air quality, it's important to understand which appliance is best suited to tackle your specific concerns. Whether you're battling allergens, pollutants, or excessive humidity, we'll provide the insights you need to make an informed decision. Indoor air quality plays a significant role in your overall well-being, especially considering that most people spend the majority of their time indoors. Poor indoor air quality can lead to allergies, respiratory issues, and discomfort. 

Trying to decide between an air purifier vs dehumidifier? In this article, we'll explore how they both work, their unique benefits, and the factors you should consider when deciding between the two. Let's dive in and learn more about the differences between air purifiers and dehumidifiers.

Air Purifiers and Dehumidifiers: Understanding the Difference

Before diving into the specifics of air purifiers and dehumidifiers, it's important to understand the fundamental difference between these two appliances. While both are designed to improve indoor air quality, they tackle different problems.

An air purifier cleans the air by removing pollutants and allergens, helping to create a cleaner and healthier environment for you and your family. These devices use filters to trap particles like dust, pollen, pet dander, and even some bacteria and viruses, effectively reducing the presence of harmful airborne particles. On the other hand, a dehumidifier focuses on managing indoor humidity levels. Excessive humidity can promote the growth of mold and mildew, leading to musty odors and potential health issues. Dehumidifiers work by extracting moisture from the air, effectively reducing humidity levels and preventing the growth of mold and mildew. While both air purifiers and dehumidifiers are important for maintaining a healthy indoor environment, understanding their unique functions and benefits will help you determine which appliance is best suited for addressing your specific needs.

How Air Purifiers Improve Indoor Air Quality

Air purifiers are highly beneficial for improving indoor air quality by reducing the presence of pollutants. These appliances utilize filters to effectively trap various airborne particles, including dust, pollen, pet dander, and certain bacteria and viruses. By removing these pollutants from the air, air purifiers help create a cleaner and healthier breathing environment. This is particularly advantageous for individuals who suffer from allergies or asthma, as it can significantly alleviate symptoms and improve respiratory health. Furthermore, advanced air purifiers often incorporate additional technologies such as activated carbon filters and UV sterilization. Activated carbon filters are effective in eliminating odors and capturing volatile organic compounds (VOCs) that may be present. UV sterilization, on the other hand, helps kill germs and pathogens that can lead to illness and infections. With the combination of filtration and specialized technologies, air purifiers provide comprehensive air cleaning capabilities, promoting improved indoor air quality and overall well-being. 

The Role of Dehumidifiers in Managing Indoor Humidity

Excessive humidity can lead to various problems in your indoor environment. It creates the perfect conditions for mold growth, resulting in potential health hazards and musty odors. Excessive moisture also provides a breeding ground for dust mites, which can trigger allergies and respiratory issues. To combat these issues, dehumidifiers play a vital role in maintaining optimal humidity levels. Dehumidifiers work by extracting excess moisture from the air, effectively reducing humidity levels. Rot and the associated issues caused by excessive humidity can also be mitigated with the help of dehumidifiers. These appliances are particularly beneficial in areas with high humidity or in spaces that tend to be damp, such as basements and crawl spaces. Dehumidifiers draw in the air, remove moisture, and redistribute the drier air back into the room. Learning how to clean a dehumidifier will help to maintain efficient operation.

Choosing Between an Air Purifier and a Dehumidifier

When it comes to improving your indoor environment, deciding between an air purifier vs a dehumidifier depends on the specific air quality or humidity issue you are facing. To make an informed decision, consider the deciding factors for each appliance.

If your primary concern is combating airborne pollutants and allergens, an air purifier is the ideal choice. Air purifiers are designed to remove pollen, pet dander, and dust particles. Certain bacteria and viruses are also extracted with the help of an air filtration system. On the other hand, if you are dealing with excessive humidity and its associated problems such as mold growth, musty odors, and dust mite infestations, a dehumidifier is the way to go. Dehumidifiers work by extracting moisture from the air, effectively reducing humidity levels and preventing mold-related issues. However, in some situations, it may be necessary to use both appliances for optimal results. Combining an air purifier and a dehumidifier can target multiple air quality issues and contaminants simultaneously. This is especially beneficial for individuals with respiratory conditions or those living in areas with high humidity levels.

Deciding Factors

  • Concerned about airborne pollutants and allergens? Choose an air purifier.
  • Dealing with excessive humidity and associated problems? Opt for a dehumidifier.
  • Experiencing both air quality and humidity issues? Consider using both appliances.

Combining Air Purifiers and Dehumidifiers for Optimal Air Quality

In certain situations, using both an air purifier and a dehumidifier can be beneficial. This combination is particularly useful for individuals with respiratory conditions, allergies, or in areas with high moisture levels. 

Additional Considerations for Air Purifiers

When choosing an air purifier, there are several important factors to consider to ensure you select the right one for your needs. Take into account features such as the Clean Air Delivery Rate (CADR), filter type and efficiency, noise level, and the size of the room in which the air purifier will be used.

  • Clean Air Delivery Rate (CADR): CADR measures the effectiveness of an air purifier in removing pollutants from the air. It provides ratings for three common pollutants: tobacco smoke, pollen, and dust. Higher CADR values indicate a more efficient air purifier in removing these specific pollutants.
  • Filter Type and Efficiency: Consider the type of filter used in the air purifier and its efficiency in capturing particles. High-efficiency particulate air (HEPA) filters are commonly recommended, as they can trap 99.97% of particles as small as 0.3 microns. Some purifiers may feature additional filters, such as activated carbon filters to eliminate odors or antimicrobial filters to inhibit the growth of bacteria.
  • Noise Level: Noise level can be an important factor, especially if you plan to use the air purifier in a bedroom or a quiet space. Look for air purifiers that offer multiple fan speeds, allowing you to adjust the noise level according to your preference. Some models also feature a "sleep mode" that operates at a quieter level during nighttime use.
  • Room Size: The size of the room where you intend to use the air purifier is another crucial consideration. Air purifiers have a recommended coverage area, typically measured in square feet. Make sure to choose a purifier that can effectively clean the air in the room size where it will be used. Some manufacturers provide guidance on the appropriate purifier size based on room dimensions.
  • Additional Features: Some air purifiers may offer additional features to enhance convenience and performance. For example, Smart control capabilities allow you to monitor and control the purifier remotely using a smartphone app. Air quality sensors can detect the presence of pollutants and adjust the purifier's operation automatically. Multiple fan speeds give you the flexibility to adjust the airflow according to your preference.

Additional Considerations for Dehumidifiers

When selecting a dehumidifier, there are several important factors to consider. These include:

  • Capacity: It is crucial to choose a dehumidifier with the appropriate capacity for your space. Capacity is typically measured in pints per day and indicates how much moisture the unit can remove from the air. Consider the size of the area you need to dehumidify and select a dehumidifier that can adequately handle the humidity levels.
  • Drainage Options: Dehumidifiers offer various drainage options to help you manage the collected moisture. Some units come with a built-in pump that automatically drains the water, while others require manual emptying of a collection bucket. Consider your preferences and the accessibility of drainage facilities in your chosen location.
  • Additional Features: Many dehumidifiers come equipped with additional features to enhance performance and user convenience. These can include programmable timers that allow you to set specific operation schedules, humidity sensors that automatically adjust the settings based on the current moisture levels, and auto-defrost functionality to prevent ice buildup in colder environments.

Maintenance and Care Tips

To ensure optimal performance, both air purifiers and dehumidifiers require regular maintenance.

Air Purifier Maintenance

  • Replace the filters regularly: Air purifiers use filters to trap particles and pollutants. Refer to the manufacturer's guidelines to determine how often the filters need to be replaced. Regular filter replacements will ensure the air purifier continues to remove allergens and pollutants effectively.
  • Clean the unit: Dust and debris can accumulate on the exterior and interior of the air purifier. Regularly wipe down the surface with a damp cloth and gently vacuum the intake vents to maintain proper airflow.

Dehumidifier Maintenance

  • Empty the collection bucket: Dehumidifiers collect water in a bucket or reservoir. To prevent overflowing or unpleasant odors, regularly empty the collection bucket according to the dehumidifier's instructions. Some dehumidifiers also offer the option of continuous drainage for added convenience.
  • Clean the drain hose: If your dehumidifier has a drain hose, make sure it is free from dirt and debris. Clean it periodically to ensure proper drainage and prevent clogs.

When it comes to improving indoor air quality, air purifiers and dehumidifiers play vital roles. Each appliance tackles a specific issue, so understanding the differences between them is crucial in making the right choice. Having said that, a combination of both air purifiers and dehumidifiers may be necessary to address various indoor air concerns effectively in some cases. Ultimately, the decision between an air purifier and a dehumidifier depends on your specific indoor air quality needs. Whether you're battling allergens, pollutants, or excess humidity, at Town Appliance, we offer a wide range of air purifiers and dehumidifiers to suit your requirements. Explore our selection to find the perfect solution for a healthier and more comfortable home.

Who Are We and Why You Can Trust Us?

At Town Appliance, we bring over 45 years of experience and expertise in the appliance industry. Since 1979, we've grown from a small local business in Lakewood, New Jersey, into the most reliable appliance retailer in the tri-state area, with four large showrooms and nationwide delivery.

Our team consists of appliance experts who are not just here to sell but to help you buy what you really need. Our recommendations are based on real-world use, not just specifications.
Thank you for choosing Town Appliance!

Daniel Kraftman Author

Written by

Daniel Kraftmann

Seasoned professional with a background in mechanical engineering, boasts over a decade of invaluable experience in the dynamic world of e-commerce.

For the past five years, he has dedicated his expertise to the appliance industry, becoming well-versed in the intricacies of home appliances, their cutting-edge technology, and ever-evolving features.

As a passionate mechanical engineering enthusiast, Daniel keeps a vigilant eye on emerging trends and innovations in the appliance sector. With a profound understanding of both the engineering principles and the consumer demands, he brings a unique blend of knowledge and practical insight to his blogs.

Back to blog