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Room Air Purifier against COVID-19 – A Buyer’s Guide

Room Air Purifier For COVID-19?

What are the connections between these two?

There are many households who are talking about the air quality of our home. Have you not give a thought about it yet? Now is the time. It is serious than any other time for your kids, elders and even for you.

You know, your immune system need help from a good quality air along with a good healthy lifestyle. The good immune system can protect you from any viruses and bacteria in our environment before you really get sick.

So, how will you ensure a clean atmosphere for your home?

Well, let’s discuss things in-depth.

Why you need a room air purifier?

A room air purifier ensures the air is fresh and purified and makes the atmosphere comfortable for living beings. It is designed to cleanse the air in your room, office, halls, and even your gym room. Its prospect is to get rid of all the impurities such as odors, smoke, specks of dust, and more from the atmosphere. 

Room Air Purifier against COVID-19 - A Buyer's Guide

We understand that your safety and health are your utmost priority. The fact that, due to the deadly pandemic, we stay indoors most of the time. An air purifier amidst this COVID-19 is one of the most essential articles to keep the indoor air cleanest.

However, the majority of the people don’t take it seriously that their health and safety are at risk 24 hours a day when they are inhaling and consuming the impure air. Whereas minor dust particles and temporary pollutants such as smoke, exhaust air outside your house, and more are not even that dangerous. Our body is efficient to fight them and keep our immune system useful. Still, you never know what disrupts your immune system and in how many ways. 

As per the advice of Dr Maria Neira from WHO, COVID-19 is mainly a disease of the respiratory system. You may know that polluted air acts as a carrier of the many germs that effects directly to our respiratory systems (lungs). Moreover, this situation worsens the health of a person if he is suffering from respiratory issues such as asthma or COPD and other diseases. In some situations, we never know when our respiratory system weakens by the course of our lifetime.

In October 2020, from different study and publications, we came to know that around 15% of all virus deaths are linked with air pollution. A related report can be found here on

What are Air purifiers and their filters?

The air purifier is a device that is used to eliminate the dust particles, smoke, harmful allergens, and numerous other viruses and bacteria present in the air.

Types Of Air Purifier

Nowadays there are numerous types and styles of air purifiers in the market. But the issue of choosing the right purifier as per your need and health conditions is extremely essential. Here we are presenting in detail the types of air purifiers which will perfectly suit your requirements.

1. Mechanical filters: 

This air purifier style has pleated filters installed in it that utilize fan blades to drive air through a vast network of thin fiber material, which aids in eradicating the dust particles, smoke, viruses, bacteria, and other impurities present in the air. These filters are also known as HEPA filters, have fine mesh and are tested to be 99.97 effective in eradicating contaminants. HEPA filters effectively trap massive particles, such as pollen, dust, and more but don’t help remove odors.  

2. Activated Carbon filters:

These are other types of air purifier that have carbon filters installed in them. The sorbent filters installed in them initiate the carbon filters for intense cleansing and purification process. The carbon filters absorb various impurities such as odor molecules, viruses, bacteria, and some hazardous gases as well. However, these filters are not that effective in fighting against a few gases such as formaldehyde, ammonia, or nitrogen oxide because it is ineffective in combating particles.

3. Ozone generation:

This style of air purifiers is designed to eradicate the air’s impurities thoroughly. This ozone generation purifier generates a molecule that counters and reacts with the pollutant molecule and eliminates it from the atmosphere. However, these air purifiers are not recommended by the experts for purifying closed spaces, as it can result in dangerous air quality levels.

4. Electronic air purifiers:

These air purifiers consist of electrostatic precipitators and ionizers that charge the particles in the air. The main prospect of this purifier is to stick the particle with the machine’s plates or with nearby surfaces like a magnet. These purifiers also produce ozone and can affect asthma patients or people who suffer from breathing issues.

5. Ultraviolet germicidal irradiation (UVGI):

This type of air purifiers claims that they can kill airborne viruses and harmful bacteria, and fungal spores with UV lamps. The UVGI air purifiers have a robust UV light to combat against several harmful bacteria and eliminate them from the air atmosphere. Photocatalytic oxidation – These types of air purifiers are commonly known as PCO purifiers. Such cleaners utilize UV radiations and photocatalyst like titanium dioxide to generate hydroxyl radicals that react with gaseous air pollutants and eliminate them from the air. These air filters are also known as the best air purifiers for cleansing the atmosphere and eradicate viruses and bacteria.

What to look for while buying an air purifier

  • Make sure to look for washable pre filters.
  • Ensure to look for Air Quality sensors.
  • Air purifiers must have handles and wheels for easily carrying it from one place to place.
  • Air purifier must have a remote controller.

What to avoid while buying an air purifier

  • Avoid getting an air purifier that emits Ozone.
  • Avoid buying an air purifier which does not have an appropriate amount of activated charcoal.
  • Avoid buying an air purifier which does not support holding UV light for a longer period.

How it works, is it making the air dry?

The most reliable method to keep your surrounding air pollutant-free and fresh is by installing the best air purifier. The air purifier eradicates the impurities and bacteria and vents them with fresh and purified air.

Also, as there are various myths regarding air purifiers, and one of them is that do they make the air dry?

Well, the answer is NO. Air purifiers are specifically designed to purify and cleanse the air and not to make the atmospheric air dry or itchy.

However, an air purifier is a fan-like device or can be called as an ionizer that does not affect the humidity level or air texture at all. It only works on eradicating the impurity particles and bacteria from the air. It is not designed to change the air humidity level.

In contrast, the severe low humidity level is an effect of cold air trapped inside a house or a building. The reason behind it is that cold air can’t contain water vapor. Air conditioners are the reason why the air inside your home gets dry.

How long does an air filter take to cleanse the room ?

Air purifiers are incredibly effective and efficient in purifying the room as expeditiously as possible. There are numerous benefits of air purifiers.  The time duration that an air purifier will take entirely depends on the quality of the air purifier that you are using and the size of the place that you are targeting.

The best and highly recommended air purifiers, as per the size and shape of the place or room, might take up to 30 minutes to 2 hours to purify the atmospheric air accurately and bring back the air quality to safe and healthy levels.

Does every room need it?

A room air purifiers are incredibly useful to cleanse the air of an entire apartment. There is no need to install a separate air purifier in every room. A cleaner can efficiently eradicate numerous impurities and viruses from the air from a massive space as well. It may take some longer time to purify the air, but it is well designed and sufficient to cleanse a large apartment on its own.

However, there are several other things to consider, such as

  • The size of the apartment or place where you want to install the air purifier
  • The size and number of rooms that the place has.
  • The kind of area you have that place in. For example, if the site is pollution prone or natural calamity prone or not.

Based on this above-mentioned information, you can buy or choose the style and model of the best air purifier for covid-19.

best room air purifier

How can room air purifier help to reduce the spread of viruses & bacteria?

Amidst this deadly pandemic, no one knows about the presence of viruses and bacteria in our room atmosphere. Numerous health experts have advised against installing the best air purifier in your home and office spaces to combat COVID 19 effectively. According to a Study of NCBI, it clearly states that viruses and microorganisms when exposed to UV radiations get killed or decreases in quantity.

The photocatalyst air purifier is a specifically created model for trapping and killing viruses and bacteria to thoroughly cleanse the air. 

The PCO filters generate the electrostatic effects of ions to trap the pollutants and kill them and make the air safe.

The other incredible choice for eliminating viruses and bacteria are Ultraviolet light air purifiers. The UV light disinfects the place and eliminates the impurities in several minutes only. The technique is to expose the UV light to the air pollutants; otherwise, it won’t be effective.

How Room Air purifier works in a hospital?

Hospitals are places where hundreds of patients and people come and go daily. As the patients in the hospitals amidst this COVID-19 have increased in number, it is deemed necessary to use the best air purifier in hospitals as the chances of microbial infections have increased as well.

As there are numerous benefits of room air purifiers, it is now testified as an incredible machine to make the atmosphere safe by eliminating the air viruses. For cleansing, the air of hospitals, sharp and high featured air purifiers are needed to neutralize airborne impurities such as coronavirus or bacteria.

In contrast, plasma cluster technology is also beneficial in eliminating odor by making the air fresh and safe.

How the hospital ICU air is purified?

The hospital ICU wards are considered the most highly hygienic rooms, so maintaining air hygiene is extremely necessary for the patients’ safety and health. As mentioned above, HEPA filters and Plasma-cluster technology are considered the most reliable and trusted air purifiers for keeping the space pollutant-free and hygiene.

Is the coronavirus airborne?

The coronavirus, also commonly known as COVID-19, is a disease primarily transmitted by contact of two or people through respiratory droplets. However, according to recent analysis of the World Health Organisation over various cases and studies around the world, it cannot rule out that SARS-CoV-2 is not airborne.

Does air purifier kill viruses?

Yes, there are numerous air purifiers that are explicitly designed to capture and eradicate the viruses as well as bacteria from the air atmosphere. According to many publications like this one, the photocatalyst air purifier and UVGI purifiers are developed to disinfect or kill the viruses and bacteria thoroughly.

Is there any side effect of an air purifier?

As there are numerous benefits of air purifiers, there are some side effects as well and they are as follows:

Lead To Indoor Air Loss:

Air purifiers are generally used in closed rooms, which can easily cause the indoor air to not circulate. If you have a cold, other people in the room are easily infected, but it is easy to cause secondary air pollution, so use an air purifier.

Make People Suffer From Inhalation Diseases:

If the air purifier is not cleaned or disinfected on a regular basis, the air passing through the air purifier will be dirtier. So be sure to clean or disinfect the air purifier frequently.

Risk From Electric Currents:

If you have children at home, you must put the air purifier out of the children’s reach, because the air purifier needs to be plugged in, which is very dangerous.

Best Room Air Purifiers

For your convenience, I am mentioning a few of the best air purifier for home use below.

1. Honeywell Air Purifier

Honeywell is a household name, it has a history of more than 130 years. It has a powerful ozone-free air purification system, which has passed CARB certification.


  • True HEPA filter: This layer of the filter can capture up to 99.97% of pollutant particles as small as 0.3 microns, such as pet dander, mold, virus, bacteria, and pollen.
  • 360-degree airflow, air filtering in all directions, 3 airflow speeds. For 120V voltage, a transformer is required.

2. Rabbit Air

If you are looking for an air purifier with a budget of around US $500 in 2020, Rabbit Air is always the first choice. Price-wise you can find some variations on this brand. But we recommend below.


  • First-class purification function
  • Advanced air filtration technology
  • Smart functions such as sensors and Wi-Fi functions
  • High-efficiency features save maintenance costs
  • 5-year warranty

The Best Portable Air Purifier Under $100:

3. Levoit Core 300

Levoit Core 300 is the latest device in 2020, it has the advantages of high quality at a very affordable price.


  • The number one air purifier with a price of less than $100
  • Powerful and efficient fan
  • Small size, very easy to carry
  • Little noise

Air Purifier With Unique Powerful And Safe Technology:

4. Winix Am90

Winix AM90 air purifier has Winix’s unique technology ‘PlasmaWave’, which can generate positive and negative ions (in a plasma state). Then, it will generate hydroxyl to neutralize any kind of air pollutants, such as viruses, bacteria, odors, and chemical gases VOCs.


  • Unique powerful and safe PlasmaWave technology
  • Smart functions such as smart sensors and Wi-Fi connection

The Most Scientific And Technological Air Purifier:

5. Dyson Pure Cool, Tp04-Hepa Air Purifier And Tower Fan

This Dyson Pure Cool, TP04 purifier is very smart, with many adjustable and customizable functions. Especially for allergy and asthma patients, this purifier will be of great help.


  • Real-time air quality feedback helps to understand when to increase fan speed
  • Automatic mode can monitor and adjust purification according to air quality

Dyson Pure Cool TP04 can use several different methods to display its functions, such as display, remote control, or control with a smartphone.

6. Blueair Air Pure 211+

Blueair Air Purifier 211+ has a simple appearance, black and white, it looks very elegant when matched with your interior. Its purification method is (filtration + absorption). Equipped with a separate indicator for replacing the filter screen and also equipped with two washable pre-filters.


  • Elegant appearance, simple appearance, high appearance
  • Convenient operation, three-speed regulation, can remove dust, smoke, and pollen.

More Buying Options!

If you think this guide helps you, look for our “9 Best Room Air Purifier for Virus” post.


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