The air purifier has come and revealed itself as a very useful device. It helps to clean the air in the home and in different indoor applications. The air purifier is very useful to maintain optimal health.

However, there are a lot of things being said about air purifiers. A lot of people have different opinions about what an air purifier can or cannot do. The air purifier is quite useful but there is no use in making false accusations on the different applications of the air purifier.

By being an advocate for air purifiers, I have carried out intensive research into the working of air purifiers. The different basic features and the functions of air purifiers have been highlighted to better understand the capabilities of the purifier.

By making use of the knowledge gained from all the research, it is time to debunk some of the myths about air purifiers. Let’s take a look at some of the air purifier myths that need to be clarified.

Common Air Purifier Myths

Myth 1: The use of an air purifier will eliminate all traces of dust from your house

A lot of people fail to understand that air purifiers deal with only particles found in the air at that point. A lot of people are of the false opinion that air purifiers will be responsible for eliminating dust from the surface of furniture. This is completely wrong.

If you have an air purifier, make sure you do not neglect your cleaning duties. The fan in the air purifier is not powerful enough to draw in all the dust before it settles on furniture. For an air purifier to free a room from all traces of dust, it would need to make use of a very powerful and noisy fan. This fan would then end up creating a cloud of dust in the home.

This is completely different from what is advisable for the health of any human. This means that you should keep your vacuum cleaner and microfiber dust cloth in hand even when purchasing an air purifier.

Myth 2: Air purifiers are a perfect solution for allergies and prevent them from reoccurring.

Air purifiers are built to deal with allergies. The truth remains that air purifiers are very effective in helping with allergies but air purifiers are only a part of the whole allergy control plan. There is a lot of action which needs to be taken by the person. Certain allergens such as pollen are quite heavy and fall to the floor before they can get sucked into the air purifier.

Certain allergy control actions require a more personal touch. You may need to clean up the environment personally to get rid of the hidden allergens. Some allergy conditions may even require the use of certain allergy relief products or materials. You may require the use of a steam cleaner for thorough cleaning or may need to do the laundry with hot water.

Myth 3: Air purifiers will make your home odor free and you don’t have to worry about cleaning the home.

A good number of people see the air purifier as a license to avoid any form of housekeeping but they can never be more wrong. The presence of an air purifier is no reason why you should fail to empty the cat litter, leave dirty clothes lying around the house, leave rotting food in the kitchen for a long or failing to take out the trash. You can’t be dirty and expect the air purifier to do all the work.

Air purifiers work for odor when they have an activated carbon filter in them. However, bad hygiene can overload the air purifier. This leaves good hygiene as the best solution for the elimination of odor.

Myth 4: A HEPA filter guarantees a good air purifier.

The HEPA filter is a part of the air purifier which is used to trap the airborne particles. However, there are different types of HEPA filters. They all have different sizes and are made from different materials. It may be impossible for any customer to distinguish between different HEPA filters.

The truth remains that an air purifier can have a HEPA filter which will be ineffective at trapping these particles. This means a “HEPA filter” tag doesn’t guarantee effective performance.

Read more about What is HEPA filter and how it traps 99.9% of air particles?

Myth 5: Air purifiers are the primary solution for people suffering from dust mite allergies.

This is another myth that is not true. There are a lot of things to do to alleviate your condition. First of all, you should purchase dust mite cover for your bedding. This will be very useful since mites are often found in warm and most environments.

The air purifier will only be effective against dust mite fragments that have been sent into the air.

Myth 6: If you have allergies, you should never open your windows

This is quite far from the truth. Allergies do not mean that you have to seal every corner of the building. Every house needs a good amount of fresh air. You may consider closing the window for long hours to alleviate your allergy condition but if you don’t have an automatic fresh air exchanger, you need to open your windows for a few hours every day. Let the air purifier work to keep you safe for those hours and even after that.

Myth 7: Air purifiers with HEPA filters are effective against odors

HEPA filters will not remove odors. They are only designed to trap airborne particles when the air is drawn into the air purifier.

An air purifier that will remove the odor is an air purifier which has an activated carbon filter in it.

Myth 8: You can run an air purifier at any speed.

Air purifiers were designed with different fan speeds to indicate different cleaning level of the machine. It is a big misconception that one speed will handle all scenarios.

It is quite common to see a lot of customer running their air purifier at low speed to avoid hearing any noise from the fan. By running the fan at a low speed, you are simply reducing the coverage of the air purifier.

If you don’t have an air purifier which runs quietly when on high speed then you should look into running the machine at optimum for some hours before you sleep and then you can reduce it for the rest of the night.

Myth 9: All air purifiers are designed to eliminate tobacco smoke

The basic function of air purifiers is to remove harmful airborne particles and irritants. The purifier will only eliminate the particles expelled into the air as a result of the smoke.

Only a few air purifiers have the capacity to remove the odor or toxic gases emitted from the smoke. If you know you will be dealing with a lot of smoke, then you will be needing a special air purifier.

Want to know, how air purifier is effective in case of smoke, read our article Do Air Purifiers work for smoke?

Myth 10: Air purifiers remove viruses and germs

Some air purifiers brag about the presence of ultraviolet rays in the machine which would help to eliminate microorganism. This has been brought to the attention of the EPA. A lot of purifiers now make use of ultraviolet rays.

However, the amount of time for which this germ or allergen is exposed to the ultraviolet light is insufficient to kill them. Only very few air purifiers have advance HEPA filters which are capable of trapping viruses. Some air purifiers make use of a sterilizer to kill all pathogens present in the air.


These are the common myths about air purifiers. These are not the only myths about air purifiers but they have been selected because they cover a very wide range. However, air purifier still remains a very effective way to get rid of allergens in the air.

There are a lot of air purifiers that help people suffering from allergies and help to create a very healthy living environment. Every person should know that an air purifier isn’t a substitute for other measures. It should also be incorporated as a part of the whole plan. Avoid too much workload on your air purifier and you will get very effective results.