Informational Guide

Can You Use An Air Purifier And Humidifier Together?

by Josh M

Can you use an air purifier and humidifier together? That’s a good question, and we’re here to help. Even though air purifiers and humidifiers have drastically different functions, they can work simultaneously and provide multiple health benefits for you and your family.

Keep reading to learn more about each device and how they can function to provide the perfect air quality in your home.

Are humidifiers and air purifiers the same? An air purifier is a product that moves the air and filters it appropriately to produce fresher and healthier air. HEPA air purifiers have an electric fan to circulate the air, and their dense filters effectively and permanently trap contaminants that could bother your health.

Additionally, purifiers help reduce smoke, pet dander and odors, pollen, and dust, making them excellent allergy symptom relievers.

On the flip side, humidifiers ease problems caused by dry air, such as bloody noses or cracked lips. These products relieve symptoms of a cold or other respiratory condition by releasing water vapor or steam, increasing the moisture levels in the air. So while both devices have their benefits, they are not the same.

In short, you can use the humidifier and air purifier together. The humidifier adds moisture to the air, while the air purifier filters out pollutants.

Can a humidifier affect an air purifier? If you use them together in the same room, keep the humidifier away from the purifier. Having the humidifier at an air purifier’s air inlet means that the HEPA filter dampens, decreasing its performance.

The moisture could also clog the air purifier’s filters and limit its effectiveness in producing clean air. Also, the dampness promotes mold and bacteria growth. Therefore, both the humidifier and purifier need to be properly maintained, requiring frequent cleaning and replacing filters.

The ideal humidity levels, or the amount of moisture in the air, will depend on the season, weather, and where you live. Typically, humidity is higher in the summer and lower in the winter. You want to aim for levels between 30% and 50%. Having humidity be too low causes problems like dry skin and irritated throat and eyes.

Contradictorily, humidity that’s too high will result in the rooms feeling stuffy, and you can even see condensation on the walls and floors.

Having the humidifier and air purifier in the same room is fine as long as you take the above precautions. You can also get an air purifier and humidifier combos. These top-rated products contain therapeutic and stress-relieving functions, leaving you in a good mood with fresh air. Most are cost-effective, seeing that they offer the same services as two separate devices.

Additionally, you won’t need as much space for these portable models, and your energy costs will drop.

Dehumidifier Beside a Light and Dark Brown Sofa

When Should You Use An Air Purifier and Humidifier?

Can I use a humidifier with an air purifier? Yes, you should, especially in the wintertime! Cold air is dry, and you need some moisture in the air. The purifier and humidifier should be used during allergy seasons to remove pollen and offer symptom relief. They provide relief together, but you shouldn’t use a humidifier in certain cases.

For example, if the humidity levels are already over 50%. If you see mold or microbes, clean the humidifier and use distilled water to avoid spreading more contaminants.

Don’t use the humidifier if you smell a musty or moldy smell. There aren’t any downsides to air purifiers; remember to replace the filters. You can keep an air purifier on for 12 hours a day and limit your humidifier use to 8 to 12 hours.

Related ArticleAir Purifier Vs Humidifier

Considerations When Using An Air Purifier & Humidifiers In The Same Room

Place your humidifier in a safe, waterproof location, out of the reach of children. These units can get hot, and if your humidifier creates a lot of condensation, place a tray or piece of plastic underneath it. Use cold or room temperature water without minerals and only use the humidifier when you need it, like to relieve allergies or battle dryness.


A purifier limits dust and helps allergy symptoms. If the air in your house is stale or you have shortness of breath, that’s when a purifier comes in handy. Purifiers limit the smell of paint, other chemicals, and smoke. Humidifiers can help with sinus congestion, snoring, dry skin or hair, and asthma.

If you have a baby, both a humidifier and purifier can help with their coughing or cold. Purifiers help infants breathe easier with clean air. Humidifiers can soothe stuffy noses, but high humidity worsens symptoms.

As stated previously, place your air purifier and humidifier opposite one another. This makes sure that both function optimally. While air purifier filters handle a wide range of humidity levels well, they won’t filter out moisture. In other words, the purifier won’t battle against your humidifier if you place them in your house accordingly.

Humidifier Benefits at Home

People Also Ask (FAQ)

Here are common questions pertaining to air appliances.

Can an air purifier remove moisture in the air?

Air purifiers can’t generally remove the moisture from the air. It might feel like the air is drying out with the increased airflow and cooling fan. Dehumidifiers remove moisture. Air purifiers don’t have a tank to collect water. Their job is strictly to circulate the air.

Related ArticleDo Air Purifier Dry the Air?

Can a humidifier clean the air?

No, a humidifier is beneficial for people with asthma and allergies. An air purifier cleans the air, while a humidifier doesn’t do anything to control the air quality but increases humidity.

Can you leave the humidifier on all night?

It’s not dangerous to leave your humidifier on, but it can be unnecessary. Humidifiers relieve persistent symptoms but can weaken your indoor air quality. Don’t make your home too humid, or you’re looking at other issues. Also, it’s not advisable to allow the humidifier to stay on if you’re out of the house.

Can you run a dehumidifier and air purifier at the same time?

The air purifier will clean the room’s air of contaminants like dust, allergens, mold, and bacteria. The dehumidifier will pull excess moisture out of the air, meaning the contaminants will have a hard time surviving and coming back. In short, a dehumidifier and purifier can work simultaneously.


In the end, you can use an air purifier and humidifier together as long as you place them in your home appropriately. Clean the humidifier often to prevent bacteria growth, and change the purifier filters to ensure clean air.

Last Updated on January 9, 2023

Josh M

My name is Josh and I am obsessed with the HVAC industry. I created this website to help HVAC techs of all levels get the best out of their heating & cooling systems. I have spent thousands of hours studying air conditioners, heaters and home air products so you can learn & buy with confidence. Learn more about the team here.