Best Air Purifier 2021 (Top 10 Reviews) – LowTechTimes

A great air purifier is one that not only prevents allergy symptoms, but is also able to remove harmful toxic particles in the air and can be used to clean the air in your house. It uses HEPA filtering technology to remove toxic particles as small as 1 micrometer in diameter. This is important because these particles can enter the body through the respiratory system and are able to cause cancer in the lungs. Every year, around 70,000 people are diagnosed with lung cancer and 90% of them have no history of smoking, but still have been exposed to these toxic particles.

Air purifiers are a bit of a unique product in the consumer market. Most of us have a ‘standard type' that does the job, but there are some that set themselves apart from the rest of the crowd; the ones that give you a ‘better quality of life' and one which you feel confident have complete control over the air you breathe. These top-end purifiers are not cheap, but they do deliver incredible results. We've reviewed a few on this page, and there are more to come…

Why do we need clean air?

We breathe air every minute of the day, and we take 17,000 to 30,000 breaths a day when we rest. The amount usually increases during work or sport.

And now the painful truth: Many of the particles we breathe in are dust, germs, plant spores and water. Even more alarming is the fact that the air quality inside our homes is five times more polluted than outside.

Most people have allergies or asthma, and someone in your home can easily get sick or be susceptible to infections. Some of the most common allergy triggers, such as mold, dust mites and pet dander, are usually hidden in our homes. It's really frustrating and detrimental to our health, especially for children.

If you are concerned about the air quality in your home, there is a simple solution: Buy the best air purifier. This is what a leading allergist says:

Air purifiers are most effective against allergens that remain in the air indefinitely, such as. B. animal dander, pollen and mold spores, notes allergist Stephen Canfield, MD, in Midtown, New York.

Quick navigation and overview

Best Air Cleaner in 2021

Title: best air purifier 2018

Doctors say that the highest quality air purifiers are able to destroy the smallest air particles up to five millimeters (microns) in size, regardless of particle characteristics or climate, and eliminate all odors and pollutants. Now everyone has the chance to breathe cleaner, healthier air every day.

Read carefully:
Do you need an air purifier, but don't know what type is best?

Great, you found us and now you can take as deep a breath as you want! After all, it is not enough to list the positive features of each proposed air purifier to make the right decision. Therefore, we have also listed some pros and cons of each air filter that you need to know.

Comparison table of the best air cleaners in 2021

Here's a quick rundown of our top 10 options.

You might think that because the air is invisible, it is pure and flawless. That's not the case. Indoor air is polluted by pet hair and dander, cigarette smoke, laundry and bathroom odors, and other unavoidable fumes that enter our homes. For this you need a high quality air purifier.

If you need information about the difference between air cleaners and air filters, you can clarify your concept by reading this article Vacuum cleaner vs Air cleaner vs Air filter – A detailed comparison.

Now let's dive into this killer review to help you make an informed decision about purchasing a quality air purifier for 2021.

1. Coway AP-1512HH – Premium air purifier

Honeywell 50250 Large Capacity Air Purifier

The 50250-S is very powerful and we rated it as the best air purifier for large rooms. This device works with real HEPA filtration, so it is able to remove almost all impurities from the air.

50250-S is optimized to remove the smallest particles from the air and has an efficient air circulation mechanism. So you can always enjoy fresh, clean air.

So yes, this device claims to be an effective air purification system. But is that really the case? We'll see about that!

Honeywell 50250 – the best air cleaner for large rooms full screen

Design, performance and features

The 50250-S air purifier is equipped with a revolutionary HEPA system that removes up to 99.97% of the smallest airborne contaminants down to 0.3 microns. So you can use this system to remove dust, pollen, tobacco smoke, mold spores, etc.

It is very important to change the filters from time to time to optimize the performance of the vacuum cleaner. The 50250-S features an electronic Intelli-Check filter indicator that warns you when to change the filters. You can now do without replacement date reminders!

This unit is AHAM certified and the CADR values are 250 for smoke, 250 for pollen and 250 for dust.

The HEPA filter is very durable and lasts up to five years. To extend the life of the filter, vacuum the filter from time to time to remove trapped dirt particles.

In addition, this excellent air purifier has an activated carbon pre-filter that traps larger particles, such as hair and lint, so they don't get into the HEPA filter. It also neutralizes household odors and provides a fresh, clean scent.

Most attractive and striking features

Do you have a large space that needs an efficient air purification system? Then air filter 50250-S is exactly what you need.

The 50250-S has a round shape that is ideal for rooms up to 390 square feet. Therefore, this air purifier is ideal for multi-purpose use, it is ideal for use in large bedrooms, living rooms, offices and other rooms.

The efficiency of the filter, especially in large rooms, depends mainly on the filtration. The round design of this unit allows it to trap airborne contaminants and expel the cleaned air in all directions for greater efficiency. Moreover, thanks to its design, it can be placed anywhere in the room.

Advantages and disadvantages of the Honeywell 50250 Air Cleaner


  • The 50250-S is very powerful and convinces with its performance.
  • It has a circular air intake and distribution, which makes it very efficient.
  • The maintenance of this unit is easy, it is equipped with an indicator that reminds you to change the filter.


  • It has a high energy consumption.
  • Most users feel that this unit makes too much noise compared to other models.

Best air cleaners 2021 Buying guide

What are the most important factors to consider when buying an exclusive air purifier? Before you make that big investment, there are a few things you should consider. We will clearly describe each consideration to help you find an exclusive air purifier that fits your individual situation and needs.

Also read : Is your house sick? 7 ways to improve the air purification in your home

New market for air cleaners

Today, there are many companies that specialize in manufacturing air purifiers. Among the leaders are:

  • Camfil makes high quality air purifiers, but you will have to pay a premium price for this brand.
  • GermGuardian devices are ideal for asthmatics and allergy sufferers.
  • Honeywell rated air purifiers have a high CADR and work well in small spaces.
  • Philips- offers stylish air purifiers that are suitable for people on a budget.
  • Sharp offers excellent air purifiers in a wide range of prices.

Things to consider when choosing the best air purifier

Consider the following points when looking for an air purifier:

  • Reasons why you may need an air purifier
  • Determine the size you need
  • Check the characteristics of each
  • Be clear about where you want to place the air cleaner
  • Make a realistic estimate of the level of maintenance and repair required.

Fuse for all selectives

Finding the best air purifier is not rocket science. Our tests consisted of verifying the noise level produced by the air purifier during its operation, as well as the average autonomy in optimal use. We used each tested device in a bedroom, living room, office and other rooms of different sizes to compare their performance.

We are happy to announce that we have subjected every device in this review to rigorous testing. So the above information is enough to help you make an informed decision when buying an air purifier.

Here are some of the factors you should consider carefully:

Noise level and power consumption

These are two important points that most manufacturers do not mention on their websites!

The noise level produced by the air cleaner depends on how the air is circulated through the unit. The higher the airflow, the higher the noise level. If you don't want a device that makes too much noise, it's best to choose one with an adjustable airflow. Almost all of the devices we examined in this test have noise levels between 5 and 60 dB, so they are quite tolerable.

Most manufacturers don't talk about energy consumption either. The good thing is that most air purifiers have low energy consumption and you won't see spikes in your electricity bill with normal use.

Reliability and durability

If you are considering an expensive purchase, reliability is an important point that you should not neglect.

In this test, we have objectively and independently compared solid and reliable air purifiers to make your investment worthwhile. All tested cleaners have proven to be durable and reliable in use according to customer feedback and confirmed by our tests.

Intake capacity

The suction power of the air cleaner determines its efficiency. An absorption rate of, say, 10,000 feet per hour cleans the air in an 800 square foot room in one hour. Be careful with this function!


How often should you change the filter in the appliance? Can you handle it? Some filters need to be changed often, while others need to be changed permanently. Other models have a filter change indicator or automatic cleaning, which are very reliable. Think about it.

Also read: 10-20 of the most common problems with air purifiers and their solutions.

Air purification technology

The key technology that differentiates the best air filters from the basic ones is the filtration system, which determines how efficiently the unit cleans the air. There are four filtration technologies based on which air cleaners are classified.


With this technology, air purification goes through several filtration stages, with mechanical filtration taking place at each stage. Modern air purifiers have three levels of filtration.

The pre-filter contains an inert foam that specializes in trapping large visible particles. The activated carbon filter removes volatile organic compounds and destroys odours. Finally, the HEPA filter removes up to 99% of molecules down to 0.3 microns. When you use these three filters, you can be sure that you will get deeply purified and clean air. However, for this technology to work properly, the filters must be changed regularly.

Purity Photocatalyst

This technology consists of a catalyst, mainly titanium dioxide, and requires ultraviolet light to work. This air purification system oxidizes polluting particles into carbon dioxide, water and nitrogen.

Ionizer Cleaner

This technology generates negative ions that combine positively charged or neutral suspended particles. As a result, the particles become too heavy to remain in suspension and fall to the surface. The working principle of these cleaners is electrostatic.

Plasma Air Purifier

They act on the air by releasing oxidizing molecules that trap air particles by means of a magnetic field. However, this technology is not popular because it releases free radicals and ozone into the air, which are harmful.

Also read : What type of air filter is best? Find a good deal

Frequently asked questions about air cleaners

How often should the filters be cleaned or replaced?

Some air purifiers have permanent filters, while others have washable and replaceable filters. The frequency with which the filter must be cleaned depends on the frequency of use and the degree of air pollution. Replacement filters should be changed every six to eight months according to the manufacturer's instructions. In addition, some air purifiers have an indicator light that tells you when the filters need to be cleaned or replaced.

Can the windows be opened while the air purifier is working?

Yes. If the air entering the room contains no pollutants, the unit will operate properly. However, if there are high concentrations of pollutants in the air, keep the windows closed.

How does an air purifier help reduce allergies?

An air purifier designed for allergy sufferers eliminates all triggers and protects you from any reaction.

Benefits of modern air purification technology

  • You can now breathe easier because there are no small particles in the air.
  • Good air purifiers can remove unpleasant odors caused by smoking and cooking heavy foods, making the air healthier.

Air purifiers help improve the air and are very useful for asthmatics and allergy sufferers.

Concluding remarks

We are sure that you are now ready to buy the best air purifier.

Whatever machine you choose, make sure it has the right filter system, that consumables are readily available, that it operates as quietly as possible and, of course, that it is energy efficient. This way, you can be sure to breathe the cleanest air possible with the least amount of effort.

Good luck with your purchase!

Frequently Asked Questions

What is the best air purifier in 2021?

The best air purifier in 2021 is the Honeywell HPA300.

Which air purifier is best in Malaysia?

The best air purifier in Malaysia is the Honeywell HPA300.

What is the highest rated air purifier?

The highest rated air purifier is the IQAir HealthPro Plus.

Related Tags:

best air purifier for covidlevoit air purifierblue air purifierproton pure air purifier reviewscoway air purifierhepa air purifier,People also search for,Feedback,Privacy settings,How Search works,best air purifier for covid,levoit air purifier,blue air purifier,proton pure air purifier reviews,coway air purifier,hepa air purifier,best air purifier consumer reports,best air purifier for viruses

Leave a Reply

Your email address will not be published. Required fields are marked *