Humidifier vs. Air Purifier - Don't Get Them Confused!

Air Purifier Or Humidifier (Or Both?)

Air purifiers and humidifiers are two different ways of improving the quality of indoor air. But which is better for you?

The purpose of an air purifier is to remove contaminants from the air. A humidifier, on the other hand, increases humidity by adding moisture to the air through evaporation. The difference between these two methods is that air purifiers kill microbes, while humidifiers add moisture to the air and improve airflow.

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Air Purifier

An air purifier typically utilizes three methods of removing airborne pollutants: electrostatic precipitation, filtration, and catalytic oxidation. These processes work well with some common contaminants such as dust and mold spores, pollutants like cigarette smoke or pet dander, and are reasonably effective in removing other indoor contaminants such as pollen or dust mites.

Air purifiers use chemicals to remove airborne contaminants, while humidifiers use evaporation. Air purifiers are more effective at removing dust mites from fabric like mattresses and clothes. The chemical indicators on air purifier monitors cannot differentiate between chemical fumes on synthetic fabrics, which can cause unwanted irritation when inhaled.

Air purifiers are able to remove smoke particles from the air for up to six hours after smoking occurs, while humidifiers need some time to cleanse themselves of contaminants and humidity before they can release fresh, contaminant-free water vapor into the room.


Humidifiers use a wicking filter to absorb water from the room's air. The water is then evaporated by a heating element. The amount of moisture in the air can vary from humidifier to humidifier.

Humidifiers are usually used to reduce dryness in the home or workplace, but they can be effective at reducing allergens and controlling asthma symptoms, as well. The water evaporates and creates a warm mist that filters out airborne particles by providing a layer of humidity between you and the air.

Humidifiers are more effective at adding moisture to dry environments. Individuals with asthma or allergies may find that they improve their symptoms with the use of a humidifier. Air conditioners tend to dry out the air, and using a humidifier can help counteract its effects.

Although both air purifiers and humidifiers can remove allergens from the air, a humidifier is more effective at trapping dust mites than an air purifier.

Which is better humidifier or air purifier?

Air purifiers are better at removing larger particles and can cleanse themselves of contaminants over time, while humidifiers are better at removing smaller particles like dust mites. Air purifiers that use cooling coils are also superior to air purifiers with a fan as they cleanse themselves more effectively with every change in the air current.

Choosing between an air purifier and humidifier is largely a matter of personal preference based on your specific needs. The recommended humidity level for most homes is between 30% and 50%, but levels above 50% can encourage the growth of mold or mildew, so the humidity level will depend on your local climate and how you are using the humidifier.

Can you use an air purifier and humidifier together?

You can use an air purifier and humidifier together. If you want to eliminate allergens and airborne pollutants while increasing humidity and improving airflow, a dual-purpose humidifier and air purifier is a great choice. This type of system will cleanse the water vapor released into the room of contaminants such as dust mites, pollen, mold spores, pollen, and pet dander.

By using an air purifier with a humidifier, you can reduce any side effects that result from chemical reactions between the two devices.

Do I need a humidifier and an air purifier?

This can be a good idea. Both air purifiers and humidifiers can improve the quality of indoor air, but using both can give you the most effective solution for your needs.

Air purifiers are excellent at removing airborne particles, so adding a humidifier will reduce the risk of airborne contaminants settling on furniture and other surfaces. Humidifiers are also good at reducing allergens and improving airflow, so pairing one with an air purifier will give you increased benefits.

Is it OK to leave air purifier on all night?

Yes, you can leave your air purifier on all night if you sleep better with it on. Some people prefer to turn the device off at night, while others find that they sleep better with the device on. If you do not like the noise, simply find an air purifier that runs quietly. If you choose to leave your air purifier off while you sleep, you should run it for at least eight hours every day.

Should humidifier run all night?

No. Although humidifiers are able to remove contaminants from the air, it is not recommended that you leave your humidifier running while you sleep. Humidifiers use a wicking filter to absorb water from the air and then heat it with the help of an internal heating element. Water is then evaporated into your room and released as a fine mist that provides additional moisture in the air.

As this mist evaporates, it will collect contaminants from your room, such as dust mites, pollen, and mold spores which are then released back into the air when the steam cools down. If you run a humidifier all night long, you may be breathing in these pollutants as they are released back into your room.

Do humidifiers help with air quality?

Humidifiers are able to improve the quality of the air in your home by adding moisture to dry, arid environments. Humidifiers can also be used to help reduce symptoms of asthma. In some humid climates, you may find that you have dry skin and itchy eyes. Using a humidifier can reduce these symptoms as well as help reduce other environmental pollutants like pollen and mold spores.

Humidifiers are not as effective at removing allergens and pollutants from the air, however, if you want to cleanse the water vapor released into your room entirely of airborne contaminants there are some humidifiers on the market with an internal pleating filter that will trap pollens and mold spores from reaching the mist.

Can air purifiers make your allergies worse?

Air purifiers that use filters will help reduce the amount of dust in the air, but they may also trap pollen and mold spores. Poor quality filters can release these particles back into the air. If you have allergies and are using an air purifier, you may find that your symptoms become worse after using it for a period of time.

Air purifiers are not effective at removing allergens, but some models do offer a pre-filter for trapping larger particles before they even reach the main filter.

Do air purifiers use much electricity?

No, an air purifier will not consume much electricity. Most models will only use a few hundred watts of energy, regardless of the size of the filter. The operating costs for an air purifier are low, but you should turn it off when you are not using it to save even more money.

Do humidifiers help with asthma?

Yes, a humidifier can help reduce the severity of asthma attacks in some cases. Dry air is known to inflame the respiratory tract and make breathing more difficult for some people with this condition. This is because your lungs contain a natural moisture that helps them produce an expected flow of air across their surface area and through your body’s tube-shaped airways.

Is humidifier safe for lungs?

As long as it is clean, then yes, humidifiers can be safe for your lungs, infact they are considered to be very good for your respiratory system. However if you have a lung condition, such as asthma or COPD/emphysema, then it is recommended that you consult with a doctor first before using a humidifier.

How do you clean my humidifier?

The filters in humidifiers are designed to hold water while releasing the filtered air every time you turn the device on. You should use a damp cloth to flush out the water from the filter when necessary or use a specific type of cleaning solution designed for humidifiers to replace the water in your filter after regular cleaning with soap and water. Choose a high-quality brand instead of purchasing cheaper generic filters which tend to clog over time.

Can a humidifier cause mold in a room?

Yes, leaving humidifiers running in rooms that contain mold or mildew is a bad idea. If you notice any mold growing around the top of your humidifier or on your filter, you should see a doctor about potential mold exposure.

Better Overall Health

Air Purifier : Better for removing bacteria, viruses and particles from the air. An Air purifier works the same way a HEPA filter does in your vacuum cleaner, trapping airborne particulates so they can be collected for disposal.

Air Purifier : Noisy machines that generate white noise may help some people get better sleep by blocking out potentially disruptive external sounds like traffic.

Air Purifier : Air purifiers can contribute to general health, especially if you have allergies or asthma. They are beneficial in removing specific airborne particulates such as mold spores and dust mites.

Humidifier : Better for preventing dry air and sinus infections. A Humidifier is a device that makes water steam by evaporation. Humidifiers are also effective at reducing lung infections and allergies.

Humidifier : Research says that people who have a humidifier in their home have less difficulty breathing at night than those who live in a dry environment.


Air purifiers are the best choice for removing airborne particulates, such as dust and pollen. If a person has allergies or asthma, an air purifier can help reduce their symptoms by making the air cleaner. You need to use the best air purifier to remove harmful contaminants from your home.

Humidifiers add moisture to dry environments by generating water vapor via evaporation. Humidifiers are effective at keeping nasal passages moist and reducing the chance of getting a cold or developing allergies due to dry air in the home. If you have allergies, it is recommended that you have a humidifier in your home and office during the winter months, when heating systems tend to suck moisture from indoor air.

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  • 3-STAGE FILTRATION: Comes equipped with a washable pre-filter for large particles like lint and fur, a High-Efficiency Activated Carbon Filter for toxic fumes and unpleasant odors, and an HEPA Filter, which captures at least 99.97% of dust, pollen, and any airborne particles with a size of 0.3 microns (µm)
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  • Advanced HEPA filtration with six stages of purification and deodorization
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Other Questions

Humidifiers vs. Air Purifiers

Simply put, air purifiers filter and remove particles from the air while humidifiers add moisture to the dry winter air. Both serve very different purposes, but similar enough that many people purchase both without realizing it. A humidifier and an air purifier have their place, but they also very different in function; knowing how these two products differ will help you make a more informed decision when you're ready to buy one or the other (or both).

Do air purifiers make the room cold?

No, Air purifiers do not make the room cold. The process of removing the dust particles from the air actually can make your room colder. You should be able to set a thermostat to a warmer temperature and have the room remain at that temperature once you've put an air purifier into operation.

Is mold in humidifier dangerous?

Yes, mold is always dangerous. You should not use a humidifier that has mold in it because the mold can be passed into the air you breathe. You should clean your humidifier regularly to prevent any kind of harmful growth. If you have a humidifier, and you notice mold on the surface of the water, or in the water reservoir you should remove it immediately.

Can you use essential oils with humidifier?

Essential oils are fine to use in a humidifier. Many people like to add their favorite scent to their humidifiers. You should never add essential oils to your air purifier. They can cause damage and decrease the performance of your air purifier. You may also want to avoid adding any other chemicals such as scented cleaning products or disinfectants because these can cause problems as well.

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Nick Le Page

 An air purifier is a device designed to remove dust, pollen, smoke, soot, mold spores, smog, and other airborne pollutants from the air.

If you want to keep your home clean and free of contaminants—and save money on heating and air conditioning bills—quality air purifiers are a powerful first step.

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