During these hot summer days, almost everyone wants to have an air conditioner at their home. Along with this, you cannot underestimate the need for clean and fresh air because the body will react with what we inhale. Those who have an air conditioner ask: “Does an air conditioner work as an air purifier?” Here, we provide the answer! 

Breathing fresh has become a big deal for all of us in recent days. Also, we cannot stay without cool air at home. Getting an air conditioner and air purifier must be costly for some people. The only solution is using a combo of both cooling and purifying in a single piece of equipment. We will show you how an air condition purifies and cleanses the air.

How Does an Air Conditioner Work in a House?

Typically, the air conditioner’s primary use is to cool a place. But now, you can have the best air conditioner and air purifier combo. This combo will purify the air along with cooling. First, let’s understand how an air conditioner works in a house.

It uses a fan, compressor, evaporator, and condenser that replace the warm air with cooler air. The internal unit of an air conditioner consists of a coil box, which contains the evaporator. This evaporator allows the refrigerant to absorb and evaporate the warmth from your house. After that, it sends cool air back to the house.


When the refrigerant absorbs the heat, it moves through the compressor. In this phase, the compressor will move the cooling fluids through the AC system. In this way, it reuses the fluids to cool the whole house. The refrigerant passes through the condenser by compressing to a higher pressure. Next, the fan starts distributing the air across the condenser coil repeatedly to lower your place’s temperature.

You may want to read more: Can You Use a Portable Air Conditioner Without Hoses?

Does an Air Conditioner Work as an Air Purifier?

The air conditioner can make the heat out of the room. But the confusion is, Does an air conditioner work as an air purifier? Well, for purifying the house, the air conditioner will require a filter made of fiberglass. Air filters keep the air clean by trapping dust, bacteria, microorganism, dirt, and other contaminants.

The air filter removes the contaminants from the air then brings back the perspective into the HVAC system. That means before the air spread into the room, the filter pulls out all the particles and contaminants. This filter lets you breathe fresh air by preventing debris, bacteria, or germs from entering the room.


The cleaning ability of an air filter depends on the MERV (minimum efficiency reporting value) rating. On a scale of 1-16, these values are determined. Higher MERV indicates higher air purification.

  • MERV 1-4: These air filters come with the HVAC system, which is considered a low cleaner.
  • MERV 5-8: These filters have paper or pleated cloth. These air filters can trap the particles from the larger surface.
  • MERV 9-12: Air filters with MERV9-12 are higher quality and better than the above two. To capture the tiniest particles, you can use this filter.
  • MERV 13-16: They are the best filter to clean the air with microns of 0.3. This filter can provide you higher efficiency comparing the other filters.

The HEPA filter is the most effective air filter. It can filter out about 99.97% of particles and contaminants from the air. An air conditioner cannot purify the air by itself. It will need an air filter to purify the air.

Read more: Keeping The Air in Your Home Safe from Pollution and Wood Smoke with an Air Purifier.

What to Look for in an Air Conditioner and Air Purifier Combo?

Getting two different machines is costly. As well as they will take more space and of course, increase the electricity bill. Therefore, the perfect option is to choose the air conditioner and purifier combo. It can effortlessly purify the air and cool the room simultaneously. So, when you look for the combo pack, you must check the type of filters included in the package. Follow the below section, which will help you to differentiate different types of filters.

Pre Filters

They are the basic air filters that are capable of capturing large-sized particles or contaminants. For example, it can easily trap hairs, mold spores, and specks of dirt from the air. Along with eliminating the pollutants from the air, it keeps the inner AC unit clean. Thus, the air conditioner can perform effectively.

HEPA Filters

The HEPA filter is the most common type. Most people consider this while buying the combo version of the air conditioner and air purifier. It can grab the tiniest particles like pollen, dander, germs, allergens, and dust from the air surface. An air conditioner with HEPA filters can do a great job of cleaning the air because it can kill 99.97% of particles that are .03 microns sized.

Read more: How Well Do Water-based Air Purifiers Work?

Activate Carbon Filters

Another effective filter is the carbon filters. It can purify the larger surface area by absorbing odor, gases, particles, smoke, and many more. You can use this filter for capturing pet hair, dander, small mold, dust, etc.

UV Sanitization

The last filter is UV sanitization that kills the living organisms by using an intense UV light amount. This filter is an excellent option for killing dust mites, bacteria, and viruses from the air surface.

Lastly, don’t forget to measure your room coverage while choosing the air conditioner and air purifier combo. It would help if you multiplied the room length by the width for measuring the room size. After that, you can get the perfect-sized air conditioner that can effectively cool and purify your room.

Wonder why air quality in winter drops? Check this out!


There is no doubt that every person wants to have an air conditioner for cooling their house or office. Also, to increase air quality, an air purifier is a must. So, if they get both these things in a single piece of equipment, it will be great. It will be cost-effective as well as won’t take too much place. So, those who have space issues can easily fit this combo pack.

They are best for controlling the indoor temperature along with making the air clean from particles. We hope to fully explain how an air conditioner works as an air purifier. Now you can find the best device to meet these both requirements.



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