Air Purifier vs. Dehumidifier – Difference and Comparison

Both of this devices have their own purpose, and both of them are great at doing their job. If I need to suggest one of them I would recommend both of them because when you use them together, they will a clean air in the room and the whole place will be much healthier.

Air Purifier Vs. Dehumidifier

What is Air Purifier?

An air purifier is a device that purifies air, just like the name says it. The device will remove unwelcome particles from the air by the filtration process and release a fresh air free from particles. An air purifier is an excellent choice for people that suffer from allergies. By removing all kind of allergens from the air, your lungs will not suffer from allergies. An air purifier can remove pollen, pet dander, dust, mites, spores and some of them can even remove bacterias and viruses. Some special air purifiers with unique filtration technology can even remove chemicals and other hazardous gases from the air.

There are many different types of air purifiers, but I recommend to use an air purifier with true HEPA filters because they have been proven to do the best filtration job. Many of them can remove 99.97% of all particles in the air.

What is Dehumidifier?

A dehumidifier is a device that removes moisture from the room. It is an ideal tool for basements that have excessive moisture. We know that too high levels of moisture will produce mold. Many air purifiers have power to remove mold spores from the air, but to really fight the mold you will need dehumidifier which will bring moisture levels down and in the process prevent mold from growing.

High humidity levels in the air are not healthy to breathe for a longer period. That is another reason why you should keep your humidity levels in the normal zone. Wet air is harder to cool, that’s why it is important to bring moisture level down and have a nice fresh air in the room in hot summer time.

There are many types of dehumidifiers, some of them work better than others. I am suggesting that you look for a dehumidifier that uses ionic membrane technology or refrigerative dehumidifiers. But also absorption dehumidifiers are doing a good job at bringing the humidity levels on standard rates.

Air Purifier or Dehumidifier That is The Question

If you have money get both of them. By using an air purifier in combination with dehumidifier you will for sure have a cleaner home and fresh air for a longer time. But if you need to choose only one of them then you need to ask yourself some questions:

Do you have high humidity levels in the room?

The answer is in correlation with the room. The bathroom has high humidity level, just like a basement or kitchen. If you are looking for better and cleaner air in that rooms dehumidifier is the right choice. But if you are looking for a clean, fresh air in the living room or bedroom then air purifier is the device for you.

Do you have polluted air in the room?

If your basement, kitchen or any room which you want to make clean with fresh air is having high levels of pollution. Pollution like pet danders, dust, mites or other particles that you don’t want to have in the room then you must buy an air purifier. What is the point of using a dehumidifier to bring humidity levels down if the air is polluted with other airborne particles that will trigger allergic reactions or make problems to your lungs?


Making a cleaner place in your home may cost you some money because if you want to be safe, you need to get both devices. You need to go with a decent air purifier and a decent dehumidifier that use modern technology for lowering humidity in the room. But if your primary concern is allergic reactions to polluted air with various micro particles then your choice is the air purifier, because only a good air purifier can remove tiny particles that cause respiratory problems. Now you have some assistance in choosing the best device for your room; you can’t go wrong at buying.

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