Air Sanitizer vs. Air Purifier | Key Differences

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Written By Jamila W.

Breathing clean air that is free from pollutants helps improve your health. There are many options to choose from when you want to improve the air quality of your home. Among the options, we have air purifiers and air sanitizers. 

However, which one is the best between the two? Which one should you buy and why? Here, we compare air sanitizer vs air purifier and help you make a choice. This article will cover the following;

  • Differences between air purifiers and sanitizers
  • The cleaning technologies used
  • Benefits of air purifiers and air sanitizers
  • Factors to consider when buying air purifiers and air sanitizers

Kindly read on to learn about this and much more. 

The Differences Between Air Sanitizers and Air Purifiers

When comparing a UV air sanitizer and an air purifier, we look at how well it works to clean air. These devices are bought to improve air quality by getting rid of unwanted particles from the air. People living with conditions like asthma usually get affected by polluted air. Breathing polluted air can cause asthma attacks and affect your general health.

You can prevent having health-related issues by having an air purifier or a UV air sanitizer in your home. So, which one should you choose, and what are the differences between the two? Let’s take a look at the comparison table showing the differences;

Air PurifierAir Sanitizer
FunctionalityAn air purifier works by getting rid of particles through filtration.Air sanitizers function differently. UV sanitizers use ultraviolet light to get rid of germs and chemicals present in the air.
FiltersMost air purifiers use HEPA filters. Ionic purifiers charge the dust particles. The negatively charged ions stick to the plate.They do not have filters. Some UV sanitizers use UV light to get rid of germs.
PerformanceThe air gets in through the air intake. It is important to place the purifier where there is enough airflow. The intake ducts are found at the top of the air purifier. The air is then passed through the filters. The filter is made from fiber material and captures dust and other particles.UV Air sanitizers need longer periods for irradiation. Usually more than 10 minutes. It does not get rid of viruses not within range
Maintenance and FlexibilityFilters are regularly replaced to maintain effective functioning. Some come with washable filters, while other models need to be replaced entirely.An air sanitizer does not have a filter. This gives them a longer lifespan.

Air Sanitizer vs. Air Purifier: Technology Used

Most air purifiers use HEPA technology to clean the air. However, there are other technologies that can be used to improve air quality. Air purifiers come with HEPA filters that are small enough to get rid of most airborne particles. An air purifier removes particles by trapping them in their filters.

There is a popular air purifier that has carbon filters. These filters get rid of bad smells and airborne contaminants, leaving your home smelling fresh and healthy. Maintaining a clean home with regular vacuuming and washing of rugs makes it easier for air purifiers to work.

Air sanitizers focus on getting rid of airborne bacteria that may affect your health. They use chemicals to kill germs and other harmful contaminants. 

Safety is important when cleaning your home; air sanitizers should be kept far from kids. At the end of the day, both devices are effective in getting rid of allergens. The two devices use different technology to give you clean air.

Overview of Air Sanitizers

Air sanitizing systems are also known as UV air sanitizers. They work the same way as an air conditioner and capture airborne contaminants in your home. They ensure that you breathe fresh air and live a healthy life. Some models are unique and can protect you from mold and bacteria. Generally, they are useful and can improve the quality of your indoor air.

Benefits of Air Sanitizers

As stated earlier, having an air sanitizer can improve your health. Let’s look at some of the benefits of air sanitizers in your home;

  • Kills germs and prevents the growth of microorganisms.
  • Works well in wet environments and can get rid of mold spores.
  • Produces little ozone which might be harmful to your health.
  • Air sanitizing system can be added to existing HVAC systems. Call a qualified HVAC technician to help you with the installation.
  • Requires less maintenance compared to purifiers.

Drawbacks of Air Sanitizers

Despite the many benefits, there are some disadvantages of having an air sterilizer in your home. Let’s look at some of them;

  • They produce noise that can affect your sleep quality.
  • Requires good air flow throughout the house to effectively work.
  • They consume high electrical power making them not economical and environmentally friendly.
  • Requires a fan and constantly running HVAC systems.
  • Not effective for getting rid of dust and pollen.

Overview of Air Purifiers

Most air purifier models are portable and can easily be moved from one room to another. Expensive and high-quality purifiers can get rid of mold and reduce pollutant levels in your home. They have filters that trap particles and carbon filters that get rid of bad smells. The purifier effectively works depending on the square feet of the room that it’s cleaning.

Benefits of Air Purifiers

  • They reduce asthma symptoms – Asthma attacks are dangerous. They are caused by airborne contaminants, including smoke, pollen, and dust, especially in children. An air purifier can help you improve the air quality of your home and reduce the effects of these pollutants. 
  • They remove mold spores – Mold produces mold spores that float in the air. Research shows that mold spores can be very tiny and cannot be seen. Having an air purifier with a HEPA filter reduces the effects of mold spores.
  • Get rid of dust and pet dander – Dust and pet hair can irritate your lungs. Pet owners must take precaution when dealing with pet dander. It may trigger allergies and asthma. Air purifiers have filters that can get rid of dust mites and pet hair.
  • Eliminates bad smell – Bad smell is uncomfortable. Carbon filters can remove bad smells and leave your home smelling fresh. 
  • Prevent Airborne diseases – Having an air purifier in your home prevents the spread of airborne diseases by removing pathogens from the air. The purifier gets rid of allergens from the air.

Drawbacks of Air Purifiers

Air purifiers work by removing allergens from the air. However, they have some drawbacks. Below is a list of the disadvantages of using air purifiers:

  • They use negatively charged ions, and their surfaces need cleaning to fully remove particles.
  • Can only remove mold spores from the air. it does not kill it.
  • Some air purifiers are loud and consume a lot of power.
  • An air purifier does not stop the growth of microorganisms.

Factors to Consider When Choosing an Air Purifier and Sanitizer for Your Home

Getting an air cleaning device for your home is not entirely an easy task. There are some factors you must consider before choosing the right one for you. Let’s look at some of them:

  1. Type of device – You must decide whether you want a sterilizer or an air purifier. Air sterilizers use UV light to get rid of germs while purifiers trap particles and other contaminants in their filters.
  2. Room size – You should go for a device that can clean your room. Size matters and devices have different ratings and ability to clean. You will need a more powerful device for a larger room
  3. Type of filters – Air purifiers come with different filter types. Some filters can trap more particles than others. For example, HEPA filters can trap the smallest particles including dust and pollen. Activated carbon filters work best by getting rid of bad smells.
  4. Noise level – Some devices have rotating fans that can be loud. They produce noise which might be uncomfortable to the users. Confirm the noise level before getting an air-cleaning device.
  5. Price – Before buying a device for your home, consider your budget. Air purifiers and sterilizers have different prices. Some cheaper devices are not as effective as expensive ones.


Getting an air-cleaning device for your house can be a problem. However, we covered you by giving you all you need to know about air purifiers and sanitizers. You can now make a more informed decision knowing all the facts. Consider getting an air purifier for your home to improve the air quality and live a healthy life.