Do Air Purifiers Need Water

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Written By Jamila W.

Are you wondering whether an air purifier needs water to work? Well, water-based air purifiers use water in the purification process. They improve indoor air quality when airborne pollutants are passed through it. Water Based Air Purifiers absorb airborne particles and volatile organic compounds from the air. The air purification process effectively filters air and removes all fine particles.

These air purifiers use natural elements in the filtration process. They use water to clean the air. However, such air purifiers are less effective than HEPA filters to clean air. A water-based air revitalizer requires water as the cleaning element to work effectively.

Does Water Purify the Air?

We should have more information about water before answering this question. This also involves the water filtration used by water-based air purifiers. Water is usually sticky, and most people don’t know this. This factor makes it perfect for use as an air filter. The water can attract dirt, dust particles, pet dander, pollen, and other pollutants. The water traps them and removes them from the air.

The water’s surface area increases when the purifier creates a vortex. It allows the device to collect and trap more particles. This is because water traps more particles and works like an air filter in waves.

So, how does water purify the air? Water cleans the air in your house through a simple process. Air gets into the air purifier through the air vents. The pulled air is then passed through the vortex of water. This is where all the pollutants are trapped. Clean Air then passes through the water, and it’s released back into the room.

The water basin is then filled with air and circulates inside the device. It is known as a “rainstorm.” The majority of the particles are captured.

In addition, it cannot remove as many pollutants as a true HEPA filter would. The air is then released into the room.

Water-based air purifiers pull dirty air into the unit’s water basin. All solid particles are, therefore, completely contained within the water.

The air will be further cleansed after being filtered using the water in the device. It whirls inside the apparatus.

But there’s more! Usually, an electrostatic filter or another type of filter serves as the third line of defense. Any particles still present are captured.

Water-based Air revitalizers make use of water as a filter. This natural filter is capable of removing air pollutants from your home. However, water-based air purifiers are not very effective for getting rid of tiny particles in your room. HEPA air purifiers are much better at removing airborne particles. Water air purifiers aim to keep your house clean and free from air pollution.

Water-Based Air Purifiers vs. HEPA Filters

High-Efficiency particulate air, popularly known as a HEPA filter, is a standard filter found in most air purifiers. The air filters must have certain qualities to meet the HEPA filter standards.

Any HEPA air filter must remove up to 99% of all particles. This includes particles as small as 0.03 microns.

Water-based air revitalizers are less effective at removing harmful particles from the air than HEPA filters. It can, however, get rid of harmful chemicals from your home despite not being as good as an activated Carbon filter.

The True HEPA Filters can remove tiny particles from the air.

Water Based Air purifiers work well enough to improve the air quality in your home.

These air purifiers can trap large particles and remove some types of odors. It can also be an affordable method for reducing dust in your home.

To remove smoke particles and airborne pollutants using a water air purifier, you need it to work at its best.

You can count on a water air purifier to remove natural pollutants quietly. It produces little noise, and the maintenance costs are cheap. A water air purifier is more affordable than a HEPA air purifier. All you need to have is running water.

What is a Water-Based Air Purifier Good For?

Water Based Air Purifiers use water to clean the air inside your home. This is different compared to the normal purifiers that use a HEPA filter. These purifiers can get rid of many pollutants, including allergens and bacteria.

Despite Water Air purifiers being less effective than HEPA air purifiers, they still play an important role in our homes. They deliver clean air and prevent you from having respiratory diseases caused by pollution. So what are they good for? Can they remove pollutants from the air? Let’s look at the roles of water air purifiers;

Both Purify and Clean the Air 

Water Air purifiers perform the same cleaning role as regular air purifiers. They get it done but use a different method to get it done. HEPA purifiers use filters to clean the air, while water air purifiers use water. The water traps pollutants from the air.

The air in the room is pulled into the purifier and passed through the water tank. Cleaner Air then comes out through the other side of the purifier.

The air is cleaned and filtered, free from most pollutants. Water Air purifiers reduce the number of household pollutants like mold spores, dust mites, pollen, and cooking smells. People with asthma and allergies can also use it to reduce the symptoms.

They might remove pollutants from the air, but they are better than normal air purifiers. This is because they don’t have filters. The filters are capable of removing tiny particles from the air. They are medically certified to be called HEPA.

Water air purifiers can encourage mold and bacteria growth if not properly maintained. You should regularly change the water inside the purifier and clean the inside to prevent mold growth.

Provide a Cheap Air Cleaning Alternative 

Manufacturers claim that water air purifiers give you a cheaper alternative to getting rid of pollutants. This is because they are affordable and do not need filters to work. Filters are usually expensive. They are cheaper to maintain compared to normal air purifiers with filters. There’s no need to buy replacement filters.

Buying an air purifier that uses a medical-grade HEPA filter would be better. This will help you, especially if you have allergies or asthma. These purifiers can be expensive but remove most Pollutants and allergens from the air. Water Air purifiers still play the same role but at a cheaper cost.

Can Be Used as Aroma Diffusers

Water Air purifiers use water as an air filter. Some people add a few drops of essential oils with the water in the purifier to work as Aroma diffusers. The essential oil releases a fresh smell in your home and acts as an air freshener.

However, you should note that not all purifiers can be used for this purpose. They are designed for different functions, and you should ensure you’re putting essential oils in the right air purifier. The essential oils can affect how well the water air purifier works. They interfere with the purity of water. It’s, however, a good option if you want to improve the quality of air in your home.

This application is known as aromatherapy. Many believe that it can help calm your mind and boost focus. Below are some other health benefits:

  • Improve sleep
  • Reduces stress
  • Relieves headaches and migraines
  • Improves digestion
  • It can help boost immunity

It Runs Quietly 

You can use a water air purifier without being worried about the noise. Most purifiers have fans that produce noise when they rotate. A water purifier uses water as its cleaning technology. It’s very silent and doesn’t affect you when you sleep. They don’t produce noise, making it easier for you to fall asleep. It ends up improving your sleep quality. You can even place it beside your bed, and it won’t affect you.

Air purifiers filter air by drawing air through the intakes with the help of fans. The fans push air inside it. This process is usually loud, but some devices use HEPA silent technology. These models produce white noise that is relaxing.

Works as a Humidifier 

Water Air Purifiers work by passing air through water and trapping air pollutants. They will also increase the humidity levels in your home. Running them in your house increases the moisture levels and keeps you from having dry skin.

This also reduces the cost of buying a humidifier. The water air purifier acts as a two-in-one device. It can purify the air and increase the moisture levels. This saves you money while giving you cleaner air.

The Clean The Air with Little Maintenance 

Water air purifiers are easy to clean and maintain. They don’t have filters. Filters can be expensive to buy and need to be regularly replaced. A water air purifier does not come with filters. Maintaining it is easy. It only needs cleaning and replacing the water. You can do this by emptying the water basin and replacing it with fresh water. Turn it on after finishing the process.

Carrying out these maintenance practices ensures your home always has purified air. There are Purifiers that can purify the air in all rooms and use the least time possible.

Factors to Consider When Buying Water Air Purifiers

Are you looking to buy a water air purifier? There are some factors to consider before getting one. You must get the right one for you and the one that perfectly works for your home. Not all purifiers can give your house fresh air. You need one that best fits you. Below are some factors to consider when buying a water air purifier;

Room Size

Air cleaners come with specific room sizes that they can filter. The rate at which they clean air depends on the size of the room. The manufacturers of the device usually indicate the room coverage. 

You should know the measurements of your room before buying an air purifier. Check the room coverage and get the right one for you. Getting the best air cleaner means getting one that fits your room.

Type of Filter 

A water air purifier does not have air filters. When you’re buying such an air cleaner, check the filters used. A water purifier should not have air filters. It uses water to trap pollutants and clean the air. 

Maintenance Required 

Different air purifiers come with different specifications for maintenance. Maintenance includes cleaning and replacing water that runs inside. This will prevent mold growth inside, which might affect how well it works.

CADR Ratings 

The clean air delivery rate shows how quickly an air purifier can remove pollutants from a room. It is measured in CFM. The higher the ratings, the quicker the purifier can clean the air. Consider getting an air purifier with high CADR ratings. This should be one of the factors to consider before buying a water air purifier.

Frequently Asked Questions(FAQs)

Are Water-Based Air Purifiers Effective?

Yes, a water-based air purifier is effective and works well in removing most Pollutants from the air. These purifiers can reduce the levels of household pollutants and certain types of bacteria.

How Do Air Purifiers and Humidifiers Impact Your Health?

Humidifiers affect your health by increasing the moisture levels in your home. Dry air is harmful to your skin and throat. It might cause itchiness and irritation. Water Air purifiers and humidifiers help prevent this problem.

Can Water Air Purifiers Filter the Outdoor Air That Enters Your Home?

Yes, air purifiers can filter most pollutants that get into your home. They use water to trap Pollutants and other harmful particles that might affect the quality of air in your home.

Does the Use of Water Air Purifiers Help With Eczema?

Yes, a water-based air purifier can help with Eczema. Eczema symptoms come as a result of dry air. It affects the skin and causes you to feel itchiness. It raises the humidity levels in your home.

Can I Replace a Humidifier With an Air Purifier Using Water?

Yes, you can replace a humidifier with a water-based air purifier. However, before doing this, you should consider the moisture levels that you want. A water air purifier can moderately increase the moisture levels in your home.


Water Based Air Purifiers use water as the cleaning agent. For them to work effectively, they need water. The water traps the particles and other harmful pollutants that might enter your home. The water inside a water-based air purifier should be replaced to ensure it works effectively. The air purifier does not have filters and always needs water to clean the air. Consider getting a water-based purifier for silent air purification.