Does an air purifier cool down the room?

Air purifiers do not contain any cooling elements or cooling mechanisms. However, they circulate the air, which can feel cold on your skin when you are close to the purifier. The temperature of the room will not decrease by running an air purifier or its fan.

Air purifiers are designed to remove harmful particles and gasses from the air. To do this, they suck in air with a fan, blow it through one or more filters, and release clean air on the other side. This does not affect the temperature of the air.

An air purifier only affects particles and gasses that can be absorbed by the specific filter that is being used.


Why an air purifier can make the air feel cooler

However, air purifiers do create air movement in the room. Moving air feels cooler since air movement along your skin makes it easier for your body to cool down. Compared to normal static indoor air, relatively fast-moving air caused by a fan or an air purifier cools down your skin. Your skin cools down because airflow results in easier evaporation of sweat. It works similar to blowing on hot food to cool it down. Waiting for static air to cool you or your food down takes longer than moving air.



Does an air purifier work as a fan?

An air purifier does have a fan. However, this fan attracts air into the device and does not blow out air as much. The incoming air slows down when going through the dense filters. Especially when you have relatively old, clogged filters. Because of this, the provided airflow is rather low, and you should not be relying on a purifier as a fan.

To create optimal airflow and the best functionality for your air purifier, make sure to clean the filters often and replace them regularly.


Air purifier and fan in one device

Some air purifiers do have the additional feature of a fan. In this way, you can have a fan running without the negative side effects of air circulation.


Normally, circulating the air around the room is a bad idea for indoor air quality. Air circulation leads to the recirculation of dust and other particles that have settled on the floor and furniture. In this way, they become airborne and can be inhaled again. This can lead to respiratory problems and many other harmful effects related to poor air quality.


If you want to use a fan while still enjoying clean healthy air, an air purifier that also includes a fan is an excellent option.

One of the best products in this category is the Dyson Pure Cool, which combines a sleek design with a wonderful fan and excellent air purifying qualities. Its fan stands out because there are no moving parts and makes the device look very fancy. Check out the Dyson Pure Cool on amazon.com.

Dyson Pure Cool Air Purifier + Fan


How to reduce the airflow to avoid the cooling effect on your skin

If you want to reduce any airflow toward you to avoid its cooling effect, consider purchasing a purifier that takes air in from all sides and emits it at the top. In this way, there will be no airflow in any specific direction and the outblown air is directed upwards.

A great example of an air purifier that works this way is the Levoit core 300. Check it out on amazon.com.


Levoit Core 300 Air Purifier



How to cool down a room while running an air purifier

Since an air purifier works best when there is not much ventilation, running an air purifier while trying to cool the air by opening some windows is not ideal. However, if you have no other choice, it is still a possibility. Your air purifier just has to keep up with the constantly incoming outdoor air and the loss of freshly cleaned air. If you have an air purifier that is capable of cleaning much larger rooms than the one you are using it in, you should be fine.

However, there are some other options to cool down the air or prevent it from heating up:

  • use thick, dark curtains and have them block incoming sunlight
  • insulate your room or house
  • place cool water or ice in front of a fan. In this way, the air will be cooled and distributed around the room
  • use heat exchanging ventilation systems. You can check my in-depth article on heat recovery ventilation for more information
  • maintain a comfortable humidity. High humidity worsens both the feeling of heat and cold
  • run an air conditioner