Air purifiers, humidifiers, and dehumidifiers are very similar terms that we have heard quite often but do not know the exact difference between the three. Although all these three machines serve a similar purpose to make the air easy for you to breathe, they are different from each other in certain aspects.
Moreover, these three devices serve comparatively different purposes and in fact, need to be purchased according to your need. Thus, you need to consider the exact functioning of these three machines before finally deciding upon which one to purchase according to your requirement and the purpose it serves.
These three machines also have a very similar appearance but very different ways of functioning. In fact, they are all also available in various sizes and can be brought according to your preference and the size of your room. Before we can compare air purifiers vs humidifiers vs dehumidifiers properly, we need to check the basic functions of each of them.
How Humidity Affects Humidifier, Dehumidifier, & Air Purifier?
Humidity, for starters, is nothing but the presence of water vapor in the air. Too much of it, and you can expect nasty things like mold to grow inside your home. However, humidity can be a lifesaver in winters. It considerably helps in keeping the temperature levels in check.
So, how does humidity affect all these appliances?
You can artificially manipulate the humidity levels inside your house with humidifiers and dehumidifiers. Air purifiers, for that matter, don’t help much. Excess humidity can inhibit the efficacy of a humidifier. Using humidifiers in a humid climate isn’t recommended at all.
Air purifiers are the worst affected due to excess moisture. The activated carbon filter inside an air purifier can easily get damaged due to excess humidity. As for dehumidifiers, the moisture in the air doesn’t affect them much.
Comparison of Air Purifier vs Humidifier vs Dehumidifier
|Point of Difference||Air Purifier||Humidifier||Dehumidifier|
|Function||It purifies air by removing dust particles, VOC, and bacteria.||It adds moisture to the room and increases humidity.||A dehumidifier removes moisture, mildew, and mites from your room. It functions just opposite to a humidifier.|
|Health Benefits||Acts against allergens. It also prevents respiratory problems.||It helps get rid of dry throat, mouth, skin, or lops. It also helps sinus patients.||It removes irritants from damp air. It also helps to reduce asthma.|
|Size & Space Requirement||The size of an air purifier varies from small to medium, depending on the capacity.||Humidifiers are smaller in size compared to air purifiers and dehumidifiers. They need less space to fit in.||The size of dehumidifiers is similar to air purifiers- small to medium.|
|Filtration System||Most air purifiers feature multistage filtration with HEPA, activated carbon, etc.||Humidifiers do not have any filtration system.||Most dehumidifiers have a single stage filter.|
|Number of Variants||You can find at least 6 types of air purifiers in the market.||Humidifiers are of 3-4 types.||Dehumidifiers do not have as much as variants than air purifiers.|
|Cleaning and Maintenance||Quarterly cleaning and maintenance are required for air purifiers.||Humidifiers need regular maintenance.||The cleaning and maintenance frequency of dehumidifiers is high because of the moisture.|
|Noise Level||Air purifiers produce low noise during operation.||Humidifiers are almost silent when used.||The noise level of dehumidifiers is comparatively higher than the others.|
|Price||Air purifiers are the costliest among the three. They usually cost in the range of Rs. 8000 to Rs. 40000.||Humidifiers are the cheapest of all. They cost only Rs. 500-3000.||Dehumidifiers are costlier than humidifiers and, in most cases, cheaper than air purifiers.|
|Recurring Costs||The upkeeping cost of air purifiers is the highest.||The recurring cost for a humidifier is the least.||The recurring cost to upkeep dehumidifiers is more than humidifiers but less than air purifiers.|
What does an Air Purifier do?
An air purifier is a device whose main focus is to remove all the pollutants from the air and as a consequence improve the quality of air in your room. The air purifier is built with layers of filters that trap all the pollutants in the air and thus give back cleaned and purified air in the room.
Moreover, the filters need to be changed very frequently to allow them to function properly. These machines are available in various sizes. The certain areas where air purifiers are beneficial are: cleaning the air of a room, reducing sickness and infections, good for your pets too.
However, the points of a disadvantage here are that those air purifiers using ozone are extremely bad for your health and can cause long-term rupture to lungs and olfactory cells.
Also Read: Best Air Purifiers in India
Benefits of Using Air Purifiers
Drawbacks of Air Purifiers
Suitable Uses of Air Purifiers
The functions of Humidifiers
A humidifier serves the purpose of adding moisture to the air in your room, thus increasing the humidity of the room. Generally, humidifiers are used during the winter season as the humidity stoops very low during those days.
A humidifier increases the level of humidity in the room with relatively low humidity by releasing moisture into the air. Humidifiers, thus, help in getting rid of several problems like dry nose, throat, and lips. In fact, it is helpful for patients with sinuses too.
Humidifiers are available in various sizes ranging from portable to large sizes. Humidifiers also have certain areas where it shows some specs of benefit which are: no dry air, reduces irritation to the skin, reduces pain in the throat, treats and prevents sore throat.
Some side effects of humidifiers are also present like excessive use of humidifiers can make you sick. Even an unclean humidifier is harmful as it can produce bacteria or molds.
Also Read: Best Humidifiers in India
Advantages of Humidifiers
Disadvantages of Humidifiers
Best Uses of Humidifiers
What is the importance of Dehumidifiers?
Unlike humidifiers, dehumidifier functions by absorbing the extra moisture present in the air of your room, thus decreasing humidity. The moisture-laden air in your room once it enters the dehumidifier is sent out with a relatively less amount of moisture, as the dehumidifier absorbs the moisture from the air.
Generally, a dehumidifier cools down the air in your room before finally absorbing the excess moisture from it and then warming up the air. This process is called refrigeration. Other than refrigeration, dehumidifiers also use the absorption method where the moisture is first absorbed in a material and then the moisture-free air is released in the air of your room.
Some areas of benefit from dehumidifiers include: reduces allergies, helps in preventing asthma attacks, and decreases the risks of infections.
Apart from these benefits, some disadvantages of dehumidifiers include the formation of molds and bacteria if not cleaning the dehumidifier and emptying its bucket on time. Excessive use of humidifiers is also not good for one’s health.
Also Read: Best Dehumidifiers in India
Advantages of Dehumidifiers
Limitations of Dehumidifiers
Ideal Uses of Dehumidifiers
Air Purifier Vs Humidifier Vs Dehumidifier: Conclusion
So, among air purifier, humidifier and dehumidifier – which one is the best for you?
That solely depends on your needs and requirements. Humidifiers work best in dry climates. Installing one can be an excellent decision for you if you live in an area with similar conditions.
On the other hand, dehumidifiers are suitable to get rid of excess indoor moisture, protecting your home from mold and mildew.
In addition, both these appliances are seasonal in most cases. For example, humidifiers are best suited in winters when there are no signs of moisture whatsoever. It’s the opposite for dehumidifiers. Air purifiers target a whole different set of users.
While one can use a dehumidifier for moderate air purification, it can’t replace full-blown air purification systems.
Furthermore, one of the most significant advantages an air purifier has is its ability to inhibit Covid-19 transmission. In the end, it all boils down to your usage patterns and needs. We recommend you assess your needs thoroughly before making a purchase.