Air Purifier vs Humidifier – Which One is Better for You in 2023

air purifier vs humidifier

Do you know that both air purifiers and humidifiers can improve indoor air quality? Well, they both improve indoor air quality in their own unique ways. Air purifiers filter airborne pollutants, while humidifiers add moisture into the air. In this article, we will be looking at the similarities and differences between air purifiers and humidifiers.

If you live in a humid climate then it’s likely that you suffer from dry nasal passages and itchy, irritated eyes. If that’s the case then you need a humidifier to increase the moisture or humidity in the air. An air purifier will remove the pollutants from the air, but it won’t add any moisture back into it.

Before we go on with the comparison of an air purifier vs a humidifier, let us first identify their basic functions.

Also Read About: Best Air Purifiers under $100

What is an Air Purifier

An air purifier is a device commonly used for an indoor setting and designed to remove pollutants from the air. Suppose you often experience allergies or suffer from asthma. In that case, it’s time to invest in an air purifier. Air purifiers are considered one of the most effective means for controlling respiratory disorders such as these.

What is a Humidifier

A humidifier is a device that increases the humidity (moisture content) of an area by heating water or releasing steam. Household humidifiers are sometimes called vaporizers because most household humidifiers utilize steam vapor to disperse moisture into the home. Vaporizers can be either cool mist or warm mist.

Also Read About: Air Purifier vs Oil Diffuser

Air Purifier vs Humidifier – Similarities and Differences

Now that we’ve identified how these two devices function, let us compare them and find out which one is better and why.

The main difference between an air purifier and a humidifier is that the air purifier has a HEPA filter. Whereas, a humidifier doesn’t need to have such an advanced filtration system. won’t be working on reducing allergens but rather adding humidity to indoor air.

So, It would be best to compare other factors such as durability, effectiveness, noise level, and cost.

Air Purifier vs humidifier – Which one is More Effective in Reducing Contaminants?

humidifier vs air purifier

An air purifier with a HEPA filter can be relied upon to remove dust, pollen, pet dander, and mold spores. Some air purifiers can even microscopic particles that may contain viruses or bacteria. The effectiveness of air purifying technology has improved over time. So, you should invest in this device if your goal is to reduce pollutants from the indoor air.

Some air purifiers have smart sensors to automatically adjust their settings based on the room’s current condition. While others come with pre-programmed options for specific types of contaminants.

While on the other hand, a humidifier’s main function is not to reduce allergens but rather to add moisture or humidity to the air. This device can provide relief, especially if you live in a dry region where the air quality becomes very uncomfortable due to its low vapor content.

Air Purifier vs Humidifier – Which one is More Expensive?

The answer will depend on the type of devices that you’re comparing. Generally, an air purifier with advanced filtration technology (e.g., HEPA filter) comes with a higher price tag On average, expect to pay around $200 for this device, depending on its size and features.

A humidifier is generally less expensive than an air purifier because of its simple design and purpose. You can purchase one for around $40 to $80 based on the size and type of water tank that you’re getting.

Also Check: Best Air Purifiers for Bathroom

Humidifier vs Air purifier – Which one is Better?

When it comes down to choosing between an air purifier vs humidifier, remember that these devices do two different things despite their similarities at first glance. The air purifying technology that’s built into this machine makes it ideal for homes where there are children and pets.

On the other hand, a humidifier is ideal for rooms with very dry air because this technology will help you maintain the humidity at an optimal level, especially during winter. We end up depleting the house’s moisture instead, which can only mean one thing: dryness everywhere.

Humidifier Vs Air purifier – Which One is More Durable?

An air purifying device is usually made with materials that are high in quality so that they can last for many years. VOCs, heavy metals, fungi, pollen, and other particles that may cause diseases to remain trapped inside this machine until it’s time for them to be disposed of or recycled.

Some units even have UV lights, killing bacteria before releasing clean air back into the room again. They’re also quite during operation compared to humidifiers because their fan blades work silently on delivering purified air.

A humidifier is less durable than an air purifier because the fan blades in this device are pretty loud when working. They can also produce “white dust” if you’re using hard water. Particles of calcium carbonate deposit onto surfaces near the humidifier, which only means one thing: cleaning efforts will increase significantly.

Air Purifier vs Humidifier – Which One is More Effective?

humidifier vs air purifier

As mentioned, using both devices can prove beneficial to your health and the overall comfort level inside your home. If you’re not sure about purchasing an air purifying device, then go with a humidifier first; if you’re thinking of getting rid of this machine after some time, then you can look into air purifiers.

Don’t overthink about the differences and get both so you’ll have peace of mind knowing that insects, dust particles, and other irritants won’t harm anyone inside your home. Both air purifiers and humidifiers are widely available in appliance stores. That’s why you won’t have any trouble looking for either one.

These devices come in different shapes and sizes, but they’re both easy to use, effective at what it does. Plus these are durable enough to last for several years without any problem. As much as possible, though, try to invest on the higher end of the price scale if you want quality.


The bottom line is that the difference between an air purifier vs humidifier may seem small at first glance. But once you learn more about their differences, then you’ll notice that these two devices do different things. Both devices are different from each other when it comes to improving your indoor air quality.