10 Best Air Purifier For Viruses – HEPA Filter Technology

Best Air Purifier For Viruses

The state of the air is a severe problem. It has made news in recent months as concerns about removing toxins such as wildfire particulate matter and viruses from the air we breathe have grown.

While using face masks to protect yourself from the coronavirus is always a good idea, the air quality in your house is frequently disregarded. Fuel-burning appliances, decaying insulation, newly installed carpets, household cleaning chemicals, and outside air pollution are just a few of the indoor contributors to bad air quality.

So, we have created a list of the best air purifier for viruses created with the latest HEPA technology.

How Do Air Purifiers Work?

To comprehend how an air purifier functions, you must first understand the many types of filtration and removal technology available. As previously stated, some air purifiers employ physical filtration processes, while others use chemical methods to remove particulates. Some people utilize a combination of these methods.

Fibrous Air Filters

Fibrous air filters are featured in many of the most popular air purifiers, and they function by physically filtering pollutants by trapping them in the filter fibers. One of the most prominent names used in the context of air purifiers is HEPA (high-efficiency particulate air filter).

HEPA filters are fiber pleated air filters that can theoretically remove 99.97% of dust mites, pollen, mold, bacteria, and any other airborne particle having a diameter of 0.3 microns or bigger. They are found in many vacuum cleaners and air purifiers on the market.

HEPA filters absorb particulate matter in air purifiers like the Wynd Home Purifier and the Blueair Classic 205 that we evaluated.

Electrostatic precipitators and ionizers

Both ESPs and ionizers employ a live wire to charge the particles as they enter the air purifier, and an oppositely charged electric plate gathers the particles as they pass through.

“Since almost all particulate matters, including airborne pathogens, carry charges (mostly negative charges), this technique uses electrostatic interactions to attract the particles and/or high electric current to kill the pathogens,” explains Dr. Wei-Ning Wang, associate professor of mechanical and nuclear engineering at Virginia Commonwealth University College of Engineering.

Sorbent media 

Sorbent media absorbs and traps particles by utilizing the fact that particles are attracted to specific molecules. Two of the most commonly utilized sorbent media filters are activated carbon and silica gel.

The LG PuriCare 360-Degree Air Purifier, the finest smart air purifier we tested, employs an activated carbon sorbent filter to eliminate odor, pollution, and airborne pollutants.

Photocatalytic oxidation

Using a combination of UV lamps and sorbent medium, photocatalytic oxidation (PCO) creates ions that oxidize ozone gas particles and change their chemical composition until only carbon dioxide and water remain.


Plasma air purifiers, like PCO, remove pollutants by creating ionized particles that adhere to them and oxidize their chemical makeup, but they do so without the usage of sorbent material.

A PlasmaWave function, which you can turn on or off, is used by air purifiers like the Winix 5500-2 air purifier. While plasma has some risks, the California Air Resources Board has recognized it as emitting safe quantities of ozone.

What Does An Air Purifier Do?

Asbestos, carbon monoxide, formaldehyde, insecticides, and lead, to mention a few, can all poison stagnant residential air. When the space in which they wander doesn’t provide enough ventilation, these toxic particles can cause both short- and long-term health impacts, ranging from minor allergy-like symptoms to respiratory diseases and cancer.

Using a combination of physical filters, devices, chemicals, and procedures, air purifiers can help to remove or reduce gas pollutants. Air purifiers can help improve your home’s indoor air quality, relieve allergy and asthma symptoms, and remove contaminants from the air.

What Do HEPA Air Filters Do?

Particles from dust, mold, pollen, germs, viruses and other microscopic particles are removed from the air using HEPA filters. To make the filter, thin glass fibers are randomly placed in a dense, paperlike substance and pleated.

Pollutants are trapped in the fibers of the portable filters as air particles travel past them. Larger particles then cling to the filter, preventing smaller ones from flowing through. Particles that are as tiny as 0.3 microns are captured by a HEPA filter.

A pleated device that can remove particles from the surrounding air is a high-efficiency particulate air (HEPA) filter. These filters are used by a variety of devices, including air purifiers, which are designed to remove a variety of particles and harmful pollutants from the air in your home.

Benefits of Air Purifiers

While air purifiers cannot protect you from coronavirus, they do provide a number of other advantages. If you’re sensitive to dust or allergens, or if you have asthma, allergies, or other respiratory issues, Josh Davidson, MD, an allergy and immunology specialist in California, recommends investing in an air purifier.

Types of Filters

For household use, there are many different kinds of air filters and air purifying equipment. Cleaning devices, air filtration, portable air cleaners, whole-home fan systems, heating, and cooling equipment, air purification devices, and other items can all benefit from HEPA filters. The purpose is to remove microscopic particles from the air as it travels through these devices.

HEPA filters aren’t the only way to do it, but they’re well-known for removing even the tiniest particles from the air. Filters can also be used for:

  • Ultra-HEPA filters or ULPA filters. These can capture 99.999 percent of particles with a diameter of 0.3 microns or less.
  • Electrostatic filters. These use a modest static charge to capture particles and assist them to attach to the filter.
  • Electrostatic precipitators. Metal plates or wires are used in these efficient filters to attract particles with the opposite charge. 
  • Ionization. These filters work by emitting a tiny charge that attracts airborne particles in a magnetic-like manner. This sort of filtration has the potential to generate ozone gases, which might irritate those with respiratory disorders

What Are the Best HEPA Air Purifiers

Are you looking for a simple and efficient solution to getting rid of virus-causing viruses and bacteria from the air you breathe? Here are some of the best HEPA air purifiers available for purchase on the internet.

1. Coway Airmega 150 Air Purifier

Coway’s newest air purifier is clean and small, with a three-stage filtration procedure that removes 99.97 percent of particles from the air. To effectively decrease and eliminate airborne contaminants, the shoebox-sized unit has a pre-filter, a deodorization filter, and a True HEPA filter. An air quality indicator allows you to monitor the air quality in your room in real-time, and lights on the unit indicate when the filter needs to be replaced. To clean and dry the reusable filter, simply slip it out.

Despite its modest size, the Airmega 150 can cover up to 214 square feet, making it ideal for a bedroom, office, or small studio, according to Coway. We really enjoy the “sage green” color scheme, which makes this air purifier stand out from the standard black and white models on the market.


  • Real-time air quality monitoring
  • Simple setup
  • Compact size


  • No app control
  • No smart home integration

2. Oransi Max Air Purifier

Oransi claims that the Max has been lab-tested to eliminate 99.99 percent of Covid-sized (125 nm) particles, which will help keep you safe at home. Allergens, mildew, pet dander, and smoke are all removed by the True HEPA filter.

The Max covers a 600 square-foot area with ease using a Japanese high-efficiency engine and a unique cylindrical shape. The swipe-touch glass control mechanism allows you to keep track of your settings.


  • Sleek design, glossy finish
  • Built-in air quality sensor, auto mode
  • 10-year warranty


  • Narrow front and the side air inlet
  • Replacing the filter is a bit of a hassle
  • No remote control 

3. Blueair Blue Pure 211 Plus

The superb large-room air cleaner from Blueair looks nice, operates quietly, and, most importantly, cleans vast rooms effectively. The Blue Pure 211 Plus is 13 pounds in weight and has a straightforward user interface: Set the device to low, medium, high, or off with the touch-sensitive button on the front. 

While it would be good to have a few more smarts, such as an automatic setting that adapts to air quality, Blueair has put its money where it counts: cleaning technology. The True HEPA filter is certified to clean the air in rooms up to 560 square feet, and the activated carbon filter helps to eliminate odors as well. For $300, that much power is quite amazing.


  • 3-stage filtration removes both particulate and gaseous pollutants
  • High airflow rate, suitable for removing allergens faster
  • Multicolor fabric pre-filter option


  • The particle filter is not HEPA-grade
  • Not suitable for odor removal
  • No carrying handle or caster wheels

4. Molekule Air Purifier

This is one of the most expensive air purifiers on the list, but it may be worth it for extreme allergy sufferers. Unlike most other purifiers, which use HEPA filters to capture particulates from the air, the Molekule eliminates and then destroys indoor air pollutants.

It accomplishes this by employing a two-stage filtration system: The pre-filter collects bigger types of pollutants like dander and pollen, and the nano-filter cleans the air using a technique called photoelectrochemical oxidation (PECO), which claims to eradicate airborne contaminants 1,000 times smaller than those that can be destroyed by a typical air purifier.


  • Premium design, one-button control
  • It comes with a natural wool-felt handle
  • Tested in a government laboratory, FDA-approved


  • No pre-filter
  • PECO filtration is a bit slower than HEPA filtration
  • Filter replacement cost is slightly higher

5. Levoit Air Purifier

This Levoit model is small enough to fit on your desk and has a HEPA filter that removes 99.97 percent of dust, pollen, smoke, odor, mold spores, and pet dander. It filters up to 300 square feet. It’s a great low-cost alternative that avoids high-tech features like UV and ionization that are more frequent in this price bracket.

Instead, a three-stage filtration system is used, with a pre-filter, HEPA filter, an activated carbon filter. With three fan settings, you can adjust the purifier’s speed and volume.


  • 100% ozone-free, 360-degree air intake
  • Moderate CADR ratings
  • Compact and elegant design
  • Low maintenance costs
  • Energy Star certified


  • Pre-filter is not washable
  • The low odor removal efficiency

6. Honeywell True HEPA Whole Room Air Purifier 

When this item is in stock, it can usually be found at numerous brick-and-mortar retailers and on sale, making it an easy choice to acquire in a hurry. This machine is designed to be portable and easy to transport from one room to another. Although it is quieter than some of its competitors, it still provides excellent filtering.

Models designed for smaller rooms or moving a smaller volume of air are also available, lowering costs. According to reviews, customers adore this product, describing it as a cost-effective device and efficient equipment.


  • True HEPA grade filtrations
  • Low maintenance costs
  • Energy Star certified
  • 5-year warranty


  • Ineffective odor filter
  • No child/pet lock feature

7. Levoit Core 400s

Levoit is a popular brand on consumer-focused websites like Amazon, and it offers a wide choice of devices to suit any budget. The Core 400s is priced just below the range of other high-end models, making it both cheap and functional.

The Core 400s has a large HEPA filter and is named for the room size it is supposed to filter (400 square feet). Voice control and other bells and whistles are available, and the device is easily portable.


  • 100% ozone-free, 360-degree air intake
  • Moderate CADR ratings
  • Compact and elegant design
  • Low maintenance costs
  • Energy Star certified


  • Pre-filter is not washable
  • The low odor removal efficiency

8. Blueair Blue Pure 211+

Blueair makes two appearances on our list. Once for this air purifier, which consistently ranks at the top of consumer sites’ “best HEPA air purifier” rankings. The model is praised by Consumer Reports for having top-rated filtration at both high and moderate speeds (CADR scores are usually based on filtration at the highest speed only). The second time, shown below, is for its entire array of air purifiers, which includes models to suit most room sizes and budgets.

This portable machine is made for home usage, and the filter components are washable to extend the life of your filter. This model isn’t the quietest, but it does include some useful features, such as a light that indicates when it’s time to change the filter.


  • Multicolor fabric pre-filter option
  • One-button minimalist design
  • Low energy consumption, Energy Star certified
  • CARB approved, AHAM verified


  • Not suitable for odor removal
  • no timer function
  • no air quality sensor
  • No carrying handle or caster wheels

9. Medify Air MA-40

Another popular brand is Medify Air, which is particularly popular among those who require air purifiers for medical reasons. While it claims to be “silent,” the quietest setting is nearly half the loudness of a vacuum cleaner, so the noise level is subjective.

Due to its size and construction, this huge unit may be difficult to transport, but it provides excellent filtering for the price. Because of its size and construction, this huge unit may be tough to transport, but it provides high levels of filtration for the money. This manufacturer has a selection of models to pick from.


  • Modern design
  • convenient touch control panel
  • 3-in-1 combined filter pack
  • Easy to maintain and move between places
  • Lifetime warranty


  • A bit noisier even on the lowest fan speed
  • The particle sensor removed from v2.0
  • Can’t remove strong odors
  • No dedicated washable pre-filter

10. Rabbit Air MinusA2

Rabbit Air is a well-reviewed albeit expensive option for consumers searching for style and utility. These gadgets are available in black and white or with a few well-known art prints, like Monet’s “Water Lilies” and Van Gogh’s “Starry Night.”

On the lowest settings, this model is really quiet, so you may have to trade some functionality in exchange for volume and aesthetics. Although the CADR scores are lower than other inexpensive models, if you’re seeking a model that combines function and appearance with high-tech options, this model may be right for you.


  • Very quiet even at the highest fan speed setting
  • There has also been a Wi-Fi variant
  • Space-saving flat design
  • suitable for tight spaces
  • 5-year warranty


  • Narrow air intake
  • comparatively low air delivery rate
  • Slightly expensive


Do Air Purifiers Help You Sleep Better?

Yes, air purifiers can help you sleep better by removing allergens from your living space. Allergens might cause sleep disturbances in some persons. Allergic symptoms such as frequent coughing, sneezing, or difficulty breathing might disrupt your sleep.

By trapping particles, air purifiers can reduce the likelihood of allergies. In a clean and fresh atmosphere, you sleep better. A good night’s sleep also boosts your mood and improves your cognitive abilities.

Are Air Purifiers Bad For You?

Not all air purifiers are harmful to your health. Some ozone-emitting air purifiers are potentially dangerous. They induce chest pain, coughing, and shortness of breath. Ozone might harm your respiratory system if you are exposed to large doses of it. HEPA and activated carbon filters in air purifiers are generally safe to use.

Can air purifiers prevent coronavirus?

No, there is no proof that air purifiers can eliminate coronavirus. HEPA filters can capture particles as small as 0.3 microns in most cases, but the coronavirus is even smaller. Some UV-light air purifiers can kill smaller germs, but no research has shown that they can kill the new coronavirus.

Where should I place my air purifier?

You can put the air purifier in your living room or your bedroom. The idea is to spend as much time as possible outside in the fresh air. Because the air purifiers are portable, they may easily be transferred from one room to another.


Air purifiers are in high demand due to a lack of ventilation in households. They help to reduce indoor air pollution, but their filters have a limit. Some filters are only effective for two to three months, while others might last up to a year.

Continue to monitor the air filter indicator to ensure that you change filters at the appropriate times and maintain a clean indoor environment.