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Air Purifier vs Humidifier: Which One Should you Pick?

It feels exhilarating when you get home to breathe in fresh and relaxing air after a hectic day out in the streets breathing in all sorts of contaminated air; from petrol fumes, acrid smells from dumpsites and industrial wastes.Air Purifier vs Humidifier

Air purifiers and humidifiers improve the air you breathe at home, though they work differently. So, it will depend on the type of requirements you have so as to choose the right device that will bring an impact to your home. So would you go for an air purifier or humidifier for asthma?

Let’s try to answer this in the next few paragraphs.

An air purifier’s work is to  trap and get away with contaminants in the air, leaving a freshly cleaned air. Air purifier basically features a fan and a filter, but due to technology, today’s air purifiers might have air ionizers that trap dust, pollen and pet dander by first charging them so that they get heavy and fall to the ground. An air purifier allows air to pass through it, contaminants are removed on the filter and clean air is returned back  to the room.

A humidifier’s work is simply to add moisture in the air by boiling water into steam and vibrating it in the air with ultrasonic technology or by evaporating water using a fan and a wick.

Air Purifier vs Humidifier


Some of the benefits one gets from the use of a humidifier are:

Moistening skin and hair_during winters, the heating units used tend to lead to dry air in a room. This causes your hair and skin to become dry, a humidifier will help reduce the risk of your body getting dry.

A humidifier can also help reduce the risk of you being able to catch a flu. Study shows that high humidity levels makes virus particles less likely to be infectious. It is the reason why most people are buying air humidifiers for baby so that their little kiddos do not contract so many airborne diseases.

Types of Humidifiers

1.Central Humidifiers

They are built from air conditioners or heating systems, their work is to add humidity in air.

2. Evaporators

They blow moisture through a moistened filter.

3. Impellers

They are rotating disks that run at high speeds to vaporize water.

4. Ultrasonic

It uses ultrasonic vibrations to produce cool moist air. They are usually quieter since they don’t have a fan.

Also see: Are Humidifiers Safe For Dogs?

Factors to consider while choosing an Air Humidifier

  • Size

Different sizes of humidifiers determine different sizes of rooms to be used to get a great effect. Room humidifiers are small in size and should be easily portable to transport them to any point. Larger humidifiers can be used for the entire home or in large organizations.

  • Mineral Dust

Mineral dust is a film of dust seen on furniture after the humidifier has run for a long time. The solution to this is while purchasing this humidifier, make sure that it does not produce any mineral dust. Also make sure that the water you are using for the humidifier to run is distilled.

  • Automatic shut off

Automatic humidifiers help in saving energy and also save you from getting fire accidents especially when water in the humidifier gets used up. Humidifiers without automatic shut down options are risky to use since they do not shut themselves off when water is off.

  • Level of Noise

Check on how noisy your humidifier can be before buying. Choose  a humidifier that will not distract your normal activities due to noise. When you have a baby, you would want a quiet humidifier that does not distract their sleep, right?

  • Maintenance

Humidifiers need to be cleaned with water, cleaning of the humidifier is not easy though. Filters also need to be changed regularly, this will bring effectiveness to your surroundings. Choose a humidifier that is easy to clean and with low maintenance costs.

Our Top Three Choice of Best Humidifiers

  1. HUPRO Cool & Warm Ultrasonic Humidifier
  2. Levoit humidifiers for large room bedroom (6l) warm and cool mist
  3. Everlasting Comfort Cool Mist Humidifier for Bedroom 

Air purifiers

From the beginning of this article you now know what an air purifier is and how it works to make sure that air is cleaned up by removing all pollutants and trapping dust particles, pet danders, pollens and other allergens.

Types of filters in Air Purifiers

1.HEPA Filters

These types of filters trap down pollutants up to 0.3 microns in size. These particles can only be seen through the use of a hand lens since they cannot be easily seen by bare eyes.

2. Activated Charcoal filter

This type of filter traps odors in the room leaving the room with a fresh clean air. You wil want it if there is kitchen smoke or cigarette smoke produced in your house and it irritates one of the family members.

3. Electrostatic precipitators

These are used to charge particles passing by the filters. Electrostatic plates require to be changed regularly to maintain the efficiency of the filter.

4. UV light air purifier

They use UV rays to kill germs floating in the air. Be careful not to go for UV light purifiers that release ozone air since this can cause lung damage and irritability in your respiratory system..

5. Ozone generators

Purifiers containing ozone generators help get rid of odors. They are mainly used in large rooms such as hotels. The exposure to areas where there are prolonged levels of ozone can cause damage to your lungs and other respiratory problems.

Factors to consider while choosing an air purifier

  • Compatibility

Different air purifiers are designed to be used in different room capacities. To save energy  bills, you can buy an air purifier meant for a slightly larger room. This will make the purifier effective even at low speed settings.

  • Noise level

Noise levels depend on operational settings;  lower speed settings have lower noise levels compared to high speed settings. While purchasing an air purifier check on the decibels it produces at high and low settings. This is to make sure that the air purifier is not a disruption to your home especially during sleeping times.

  • HEPA filters

Look for true HEPA filters not HEPA type filters. True HEPA filters capture down to  0.3 microns in the air. HEPA type filters are just a poor imitation of true HEPA filters and will not capture as much air impurities.

  • Asthma and allergy certification

Asthma and Allergy Foundation in association with Allergy Standards Limited has created a certification program. Before they certify a product, they have to run the air purifiers and make tests to  prove that they remove most harmful particles.  Go for filters that are Asthma and Allergy certified; they won’t fail you.

Also Read: Best Air Purifiers for Pet Allergies and Asthma

  • CADR

This shows the overall speed of cleaning the air for a particular size of a room. CADR is measured in Cubic Feet Per Minute. CADR of air purifiers is based on standards set by the Association of Home Appliance Manufacturers(AHAM).

  • ACH

This shows the number of times that the entire room gets filtered per hour.  A higher ACH will give a faster rate of filtration. Make sure that you do frequent filtration this helps reduce chances of  leaving pathogens in your environment.

  • Rate of ozone emission

Before buying an air filter, test whether they emit ozone gas. Ozone gas causes damage to one’s respiratory system.

  • Maintenance

Check on how you have to often replace your filters. Some air purifiers have washable filters, make sure you check on how long your filter can stay before washing. This is to avoid your air purifier  from getting damaged or producing odors due to overused filters. While choosing an air purifier check on the cost of maintenance in ways such as energy consumption, and filter replacement.

Our Top Choice of The Best Air Purifier

  1. Coway AP-1512HH Mighty Air Purifier
  2. Winix 5500-2 Air Purifier with True HEPA
  3. Medify MA-25 Air Purifier with H13 HEPA filter


Air Purifier vs Humidifier Comparison

Air purifierHumidifier
FunctionUsed to filter particles and pollutants from the air.Used to add humidity in the air
How they workIt uses filters that trap dust particles and other pollutants and in return gives out clean and fresh air in the room.Turns water put in the device to vapor and then disperses the water vapor into the dry air in the surrounding.

Different conditions

BabiesAn air purifier can help reduce pollutants in air like smokes, plastic smells,pet dander and other irritants.If the room has dry air it prevents the baby from dry scratchy nose and throat. A humidifier can help reduce the rate of infectiousness.
Colds,flu and respiratory irritation Air purifiers capture particles in air that carry viruses, though they are not able to help an existing cold or flu. It will just be meant to ease symptoms by removing irritants from the air.A humidifier helps one to get away with the discomfort of a flu or cold by relieving a stuffy nose. Several studies show that increasing the level of humidity helps kill viruses and infections.Humidifiers will not cure you once after getting a flu or cold but it will help make your signs less harmful to your body by preventing you from getting a stuffy nose due to cold or dry air and also a scratchy throat.
Asthma & allergies Such people require an air purifier to reduce the risk of irritating their health. The air purifiers are capable of reducing allergens in the air.Humidifiers make the indoor atmosphere pleasant to breathe for asthmatic people.
Dry airAn air purifier will not serve best to help relieve you from dry air, instead it may increase excessiveness of dry air which could make your health even more threatened.A humidifier helps increase the presence of moist air thus improving dry area conditions.


Can you use an air purifier and humidifier together?

Yeah sure. Because both perform completely different functions and they are all productive and help improve and maintain one’s health.

Note that you shouldn’t use visible mist humidifiers together with any air purifiers in the same room.  But an evaporative humidifier can be used together with a purifier in the same room. The reason for taking this caution is because a humidifier produces mist which can make an air purifier dampen its filters making it ineffective, you can also avoid this by placing them at opposite ends in a room.

For good operation and outcome make sure that  both your humidifier and air purifier are well taken care of to increase productivity and outcome.

A humidifier only requires frequent cleaning. It is also good to use distilled water rather than tap water to avoid the risk of adding mineral particles in the air which may cause harm to one’s lungs.

To maintain an air purifier on the other hands simply clean the filter if washable or replace it if it is a HEPA  filter.

Humidifier & air purifier combo, a life changer

Thanks to the world’s fast advance in technology because if you are thinking of buying both a humidifier and an air purifier then you will be even more happier to know that there are air purifiers and humidifier combos; two in one. In fact if you are looking for the best humidifier and air purifier combo for baby, you will be happy to know that you can get exactly that.

With these combinations, you are going to trap contaminants in the air, add moisture in the air, reduce space and also reduce the cost of energy consumption.

Factors to consider while choosing best air purifier humidifier combo

Humidifier and air purifier combo is not just a combination of devices but it should also perform these tasks effectively to show it is worth the required purposes.

1. Filters — Make sure that the filters present are capable of removing all present impurities in the air leaving fresh air. I would advise you to go for true Hepa filters that filter upto 0.3 microns of air impurities.

2. Maximum room size that your machine will work in–choose a machine that is capable of humidifying and removing contaminants effectively in the room provided.

3. Runtime— Runtime simply refers to the amount of time you will use the humidifier before filling it again. The runtime depends on the tank size, speed options that the humidifier has and amount of time the machine stays in operation.

4. Water tank capacity — Smaller tanks are easy to fill since they are easily portable though they have a short runtime, bigger  tanks operate for a long period of time before the next fill though they are heavier to move around.

5. Noise — Consider the decibel ratings of the air purifier humidifier combo, let it not be a distraction to your home.

6. Auto shutdown feature — the air purifier humidifier combo should at least have an auto timer to switch off, this is of advantage since it will help save energy when the device is not needed.

Our Top Choice of Best Air Purifier and Humidifier Combos

  1. Sharp Triple Action Plasmacluster Air Purifier with Humidifying Function
  2. BONECO H300 – Hybrid Humidifier & Air Purifier


People experiencing winter seasons experience dry weather making their noses feel stuffy to a point of even nose bleeding. Humidifiers are used to increase humidity in the air, it is mainly effective during dry weather.

There is an increase in the level of air pollution nowadays which is making people get allergies and deteriorating their health immunity. Air purifiers are used to clean up air in a room. Both an air purifier and a humidifier can be used to improve air quality.  So, air purifier vs humidifier – which one should you pick? It’s your choice to know which device to own according to your condition. You can also own both, technology has allowed people to own both, an air purifier humidifier combo. It’s upon you to make your own choice.