A Review of Top 10 Best HEPA Air Purifiers

If you are looking for a HEPA air purifier for your home or office, you may already know how hard it is to find the best one among numerous options out there. For many, finding an answer to what is the best air purifier can be an intimidating task. That’s why, we have reviewed the top 10 best air purifiers currently available in the market for you to choose from. Go through all these models and see which one fits your requirements best!

1. GermGuardian AC4825, 3-in-1 Air Cleaning System with True HEPA

best HEPA air purifierGuardian technologies makes some of the best air purifiers for allergies and the AC4825 is one of their best. It uses ‘True HEPA filter’ which makes it the best HEPA air purifier out there. Check out some of its key features and see if it is really worth your money or not.


1. Multi-Stage Air Filtration

One of the things that makes the AC4825 stand out among others is its 3-stage filtration system. This is a very useful feature if you are looking for an air purifier, since it filters different air pollutants. The first part has a pre-filter with activates carbon to trap the larger pollutants in the air. The second part comes with a True HEPA filter that filters particles which are close to 0.3 microns. The final part of the filter has UV-C light that enables air filtration. This removes the germicidal pathogens to make the air as pure as possible.

2. Noiseless Operation

You can use the GermGuardian AC4825 at any of the three fan settings- low, medium and high. The lowest setting gives you the quietest operation mode without any sound. At the highest setting, the unit will emit minimal noise that falls into the white noise level.

3. Air Delivery Rate

The GermGuardian AC4825 is ideal for a room that is 155 sq. ft. It has a 100+ CARD or Clean Air Delivery Rate, which means that it is capable of delivering 100 cubic feet of pure air in a minute along with 5 air changes per hour.


With an impressive filtration mechanism and low maintenance, this is surely one of the best room air purifiers in this range. For those who are allergic or sensitive to dust, pollen or any other particular matter in the air, this is one of the best HEPA air purifiers they will ever get. Guardian Technologies also backs this up with a stellar warranty and after-sales service to give users complete value for their money.


  • Noiseless operation
  • Variable settings to chose from
  • Impressive design with LED lights
  • Portable and efficient
  • Easy to maintain


  • Not suitable for larger areas
  • Its filters have to be cleaned frequently (once every two weeks)

2. Holmes HEPA Type Desktop Air Purifier

best HEPA air purifierThe next model in our review of the best room air purifiers is the Holmes HEPA Type Desktop Air Purifier. Holmes claims that this particular air purifier is capable of removing as many as 99% of the total airborne particles in the air, including those that are as tiny as 2 microns. Let us go ahead and see if this air purifier is actually as efficient as the manufacturing company claims.


1. The Air Filter

This model makes use of a HEPA-type filter. This class of filters conforms to the strictest quality and performance standards set by HEPA. HEPA refers to High Efficiency Particulate Assistance. Any filter that has the HEPA rating can remove particles that are less than 0.3 microns. A HEPA-type filter is necessary for those who are allergic to dust and pollens.

With the Aer1® filter technology, this is among the most effective filters in the market at present. Not only does it remove over 99% of the airborne particles, including pollen, mold, smoke and dust; but it also spreads baking soda to get rid of any odors in the air.

2. Variable Fan Settings

This air filter allows you to set it at any of the 3 fan settings (low, medium and high) depending on your requirements. You can select the desired fan setting which would suit the room condition best. It also has an ionizer that further adds to the particulate removing capability of the purifier.

3. Ideal for small to medium-sized rooms

This air purifier by Holmes is ideal for areas that are equal to 109 sq. ft. or 10 x 11 ft (dimensions). This means that you can use it in your bedroom and study area for maximum efficiency.

4. Portable built and design

This air purifier has a slim design, so you can position it horizontally or vertically as per your convenience.


If you are looking for a room air purifier that can give you high-performance with a range of other features, this is surely the best one for you. Many people have been using this particular model for as long as 5 years and they say they have never had any problem with this model. It proves that Holmes sells quality HEPA-Type Desktop Air Filters.


  • Highly efficient in filtering pollutants from air
  • Portable and slim design
  • Variable speed settings to chose from
  • Ionizer to remove particles from air
  • Affordable


  • Noisy at high fan speeds
  • Not suitable for larger areas

3. GermGuardian AC5000E 3-in- 1 True HEPA Air Purifier System

best HEPA air purifierNext in our list is the GermGuardian AC5000E 3-in-1 Air Purifier System. This is one of the best air purifiers for those who have allergies. And with the 3-step air filtration system, it ensures that you are breathing in nothing but the cleanest of air.


1. 3-in-1 Air Filter with HEPA filter

Its 3-in-1 filter makes use of UV-C light, a HEPA filter and a Charcoal layer to purify the air. The Charcoal or the Pre-Filter lair first captures the larger particles of dust and pet hair. Next comes the True HEPA filter which is responsible for capturing the pollen, dust mites and all other allergy triggers. The final layer of filters is UV-C light, which is responsible for removing airborne germs, including those that cause pneumonia, influenza, staph and many other diseases.

2. Odor and Smoke Removal

The air filters of the AC5000E have odor removing capabilities to remove smoke particles as well as odor-causing agents from the air using activated carbon. These filters make it the best air purifier for smoke as well.

3. Energy Star Certification

The presence of Energy Star rating means that it conforms to the strict energy efficient guidelines that have been implemented by the US EPA.

4. Long Lasting Filter

The filter technology used in this air purifier system does not require any frequent maintenance tasks. You just have to replace it once every 6-9 months, which varies depending on its usage. The filter requires a replacement once it turns grey/black.


This air purifier is backed by a 5-Year Limited Warranty by the manufacturing company.


Overall, this is one of the best HEPA Air purifier models that Guardian Technologies offers. It has an effective 3-layer filter technology, requires minimal maintenance and does not draw too much power. All these features come together to make it the ideal air purifier for all internal environments. However, this model is meant only to be used for larger areas, since the cost and power is too much for a small room.


  • 3-in-1 filter technology
  • Removes germs, odor and smoke
  • Low maintenance
  • Energy Star Rated


  • Not an affordable choice for small areas

4. Honeywell 50250-S True HEPA Air Purifier

best HEPA air purifierThe Honeywell 50250-S True HEPA Air Purifier is another high-quality model designed for those who have problems related to allergies. Being one of the most affordable air purifiers out there, it has a lot to offer for the modest price tag. Let us go ahead and see what it has to offer.


1. True HEPA Filter

Without a doubt, True HEPA filters are the most recommended filter types when it comes to using air purifiers. The filters used in this air purifier can capture airborne particles that are as tiny as 0.3 microns. Thus, the unit effectively reduces pollen, dust, pet hair and even mold spores from the indoor air. It has a Glass Fiber HEPA Filter along with Carbon Activated Pre-filter that ensures the presence of pure, clean air in the room.

2. Filter Change Indicators

This unit is equipped with Electronic Filter Indicators that run on the Intelli-Check™ technology. With this, you will be alerted when it is time to clean or replace the air filters, thus eliminating the need of frequent checking or the hassle of guesswork.

3. Fast Cleaning

This air filter is designed to work with extra-efficiency in large rooms and can clear the air 5x times faster as compared to other standard air purifiers.

4. Low Maintenance

One of the biggest advantages of having the Honeywell 50250-S True HEPA Air Purifier is the minimal maintenance it requires. The filters of this model are long-lasting, which can continue working for 3 to 5 years depending on the usage. You only have to replace the pre-filter of this air purifier once every 3 months.

5. Surround Seal Technology

This technology minimizes the air leakage from the filter, which ensures that maximum air is passed through the filter and purified well.


Honeywell is a trusted brand and this is a decent air purifier from this famous brand. While it does not have a lot to offer in terms of designs and extra functionalities, it still manages to get the basic job done without any issues. For those looking to get a basic air purifier without any advanced features, this can be the best model.


  • Long-lasting HEPA Filter
  • Removes germs, allergens and dust effectively from the air
  • Low maintenance
  • Portable


  • No Energy Star rating
  • consumes more power
  • Pre-filter needs to be replaced frequently

5. Winix WAC5500 True HEPA Air Cleaner

best HEPA air purifierIf you are looking to get an air purifier for your home, the Winix WAC5500 with True HEPA filter can be the right one for you. It works especially well for family rooms and large bedrooms. Let us go ahead and see what this air cleaner has to offer.


1. Odor Control

This air purifier has a carbon pre-filter to effectively eliminate odor from the air. It also captures smoke and any type of odors that may be present in the house. It consists of a carbon sheet to capture the larger particles in the air, like hair, dust and carpet fibers; thus enhancing the lifespan of the filter.

2. Durable Filters

This air purifier employs True HEPA filters that are capable of capturing particles with the size of 0.3 microns that cover 99.97% of the total airborne pollutants. These filters can be washed and reused, and they have a long lifespan.

3. Air Pollutant Filtering

One of the most striking features of this air purifier is the way it handles air pollutants. It uses PlasmaWave technology to break the pollutants at the molecular level without any creating harmful byproducts, like ozone; thus making it efficient and environment-friendly.

4. Simplified Operation

Not only this is the best HEPA air purifier from a maintenance point of view (it requires virtually no maintenance), but it is also very convenient to use. Its Air Quality sensor gives you a ‘set and forget’ operation. So once you adjust it to your desired settings, there is no need to do anything else. The unit automatically alerts you when it is time to replace the filter, and the sleep and auto modes further add to this.

5. Ideal for 350 Sq. Ft. Rooms

You can use this air purifier in rooms with an area of 350 sq. ft.


While Winix may not be the biggest name in air purifiers, the WAC5500 surely offers you enough facilities to give it a shot. This is a highly efficient air filter that gives great results at all times. The only downside is that it does not work great in larger areas. Other than that, you are not going to find a lot to complain about this air purifier.


  • Great for small areas and rooms
  • Durable True HEPA filter
  • 3-stage filtration gives great results
  • Hassle-free usage


  • Cannot be used for larger rooms/areas

6. Honeywell True HEPA Allergen Remover

best HEPA air purifierIf you are looking for a HEPA air purifier that is not noisy, the Honeywell Allergen Remover is the best option for you. It has been one of the best sellers on many online shopping portals, including Amazon since its launch. Let’s see what this particular air purifier has that makes it so much popular in the market.

Key Features

1. Noiseless Operation

This air purifier is mostly known for its noiseless operation. The fan that pulls air inside the unit operates without any noise, as compared to many other air purifiers that generate a lot of noise while running.

2. Removes over 99.7% of the particles in the air

The filtration mechanism used by this air purifier makes it capable of capturing over 99.7% of the total pollutants in the air. It can filter all particles equal to 0.3 microns in size.

3. True HEPA Filtration

True HEPA filtration is recommended for those suffering from allergies or have sensitivity to air contaminants, such as dust or pollen. It is the most efficient filter type and removes pollen, dust, microbes and pathogens from the air.

4. Pre-filter for added air purification

Its pre-filter not only helps improve the degree of purification, but also removes the unpleasant odors from the air. This pre-filter also captures the larger particles in the air, such as dust and pet-hair to prolong the lifespan of the main filter.

5. Ideal for all medium to large rooms

Honeywell True HEPA Allergen Remover is ideal for all types of medium to large rooms. With 100 CARD, it works best in 12’ x 13’ or 155 square feet rooms.

6. Easy-tap controls

This air purifier has easy-tap electronic controls and you can use them to switch between 3 different cleaning levels, a Turbo Clean setting and 2/4/8 hours timers.


So it is safe to say that the Honeywell True HEPA Allergen Remover is really good value for money. It is one of the most affordable air purifiers in the market at present. Moreover, with a range of features and high performance, it offers you everything that you can expect from an air purifier at this range.


  • Removes pollutants as well as odors
  • Easy to use and maintain
  • Portable and takes up less space
  • Pre-filter prolongs the lifespan of the HEPA filter


  • Can only be used in small rooms (up to 155 sq. ft.)

7. GermGuardian AC5250PT 3-in- 1 Pet Pure True HEPA Air Purifier System

best HEPA air purifierGuardian Technologies makes some of the best HEPA air purifiers out there and the presence of so many of its products in this list proves it. The GermGuardian AC5250PT is one such model that has a lot to offer to every user. Let us see which features have compelled us to include it in our top 10 list.

Key Features

1. 3-in-1 True HEPA Air Purification

This is one of those unique air filters that uses a 3-in-1 air filtration technology to deliver you an internal air free of pollutants and odor. It can capture 99.7% of the pollutants in the air, right from pollen to mites and dust. It also helps reduce exposure to harmful allergens and triggers of asthma. It is one of the best air purifiers for those who have  asthma-related problems.

2. Lightweight and portable

GermGuardian AC5250PT is only 28 inches tall with a slim design. Weighing only 13.45 pounds, you can carry this air purifier with you without any hassle. Moreover, its slim design makes it easy to be used in any location.

3. 5-speed fan

You can run the unit at any of the 5 speeds it offers. Right from high-speed allergen control to the extra-quiet sleep mode, you have complete control over how this air purifier functions.

4. No hassles of remembering anything

This air purifier offers the real “set and forget” experience. Once you set it at the desired level, you can forget thinking about its functioning as it does the rest automatically. In addition to that, it also has an alert system to alert you when it is time to change the filter. You can set it to switch off on its own using the timer.


For someone who is a fan of sleek designs, this is the best air purifier not only in terms of its looks, but also the performance that it delivers. There is no doubt about the quality of air filtration it provides. And with the Energy Star qualification, there is little left to doubt about this great air purifier’s performance!


  • 5-year warranty
  • Ideal for medium and large rooms
  • Clean Air Delivery Rate of 125+
  • True HEPA provides maximum filtration


  • Produces noise at fast fan setting

8. GermGuardian AC4100 3-in- 1 HEPA Air Purifier System

best HEPA air purifierGermGuardian AC4100 is another quality product from Guardian Technologies. Touted as the perfect HEPA air purifier for home as well as office usage, it is one of the best products to purify air and get rid of all forms of pollutants, germs as well as bacteria in the air.

Key Features

1. HEPA Filters

HEPA filters are ideal for purifying air since they are capable of capturing over 99% of the airborne particles, thus significantly improving the quality of indoor air. The filter used in the GermGuardian AC4100 can filter particles that are as small as 0.7 microns.

2. Odor and bacteria removal

GermGuardian AC4100 is capable of removing all forms of common household odors, including those that arise from smoke, cooking as well as pets. In addition to that, there is UV-C light in the filter technology that helps get rid of all bacteria and germs in the air.

3. Low Maintenance

GermGuardian AC4100 uses a highly effective filter and you only have to replace it once every 6 to 8 months. However, the exact period of replacement depends on usage. The unit itself alerts you when it is time to replace the filter.

4. 3-speed fan control

There are 3 different fan speeds for you to run the air purifier.

5. Compact and Portable

With dimensions of just 7.5×6.5×11 inches, this is the most compact unit in this list. With a weight of just 4.8 pounds, it is highly portable as well.


The major highlight of the GermGuardian AC4100 is its size and weight. While I am not a fan of small air purifiers, this one certainly packs enough power to convince me that it is worth the price. Its charcoal filters are one of the best things about this air purifier, since they are very efficient when it comes to removing the odor in the room. Overall, considering its low price tag, it is surely worth it all.


  • Remove bacteria, germs and odor from the air
  • Compact and lightweight
  • HEPA filters remove allergy triggers from the air
  • Simple set up process and low maintenance


  • Can only be used in small rooms

9. Honeywell HHT-011 HEPA Clean Compact Air Purifier

best HEPA air purifierBeing the 2nd air purifier by Honewell in this list, the Honeywell HHT-011 HEPA Clean Compact is another small yet powerful unit. It claims to remove as much as 95% of the total airborne particles. But how much of it is true? Let us review its features to find out.

Key Features

1. HEPA-Type Filter

It also uses the HEPA-type filter, which is ideal for those who have a problem with allergies or asthma, since HEPA filters can remove allergy-triggers and other pollutants from the air effectively. While the filter is stated as ‘permanent’ on the box, it does not mean that no replacement is required. You still have to clean and replace the filter when it is full of pollutants, though it takes many years to be full depending on your usage. The light indicator lets you know when it is time to clean the filter.

2. Compact Design

Honeywell has designed this air purifier to be highly portable and compact. Its dimensions are just 9.40×5.8×12.9 inches.

3. Operating Noise

It does not make too much noise while operating and does not make any noise at all at the lowest fan setting. There are three fan levels in total- low, medium and high. The noise in the medium setting falls in the white noise range, while it will be a bit loud while on high.

4. Ionizer for additional filtration

You can add an ionizer to this model for additional filtration.


Honeywell provides a 5-year warranty on this HHT-011 HEPA Clean Compact Air Purifier.


Honeywell HHT-011 HEPA Clean Compact Air Purifier is a small yet powerful air filtration system. It requires virtually no maintenance, since you do not have to clean the filters for several years. With a compact size and a highly efficient filtration mechanism, it leaves little room to complain about it and delivers what is expected from a high-quality air purifier.


  • Compact, can fit in anywhere
  • Minimal noise on low fan mode
  • Ionizer can be added for extra filtration
  • 3-year warranty


  • No display for the fan settings
  • Cannot filter the tiniest particles (less than 3 microns)

10. Breathe Fresh Air HEPA Filter Ionic Ionizer Air Purifier

best HEPA air purifierLast in this list of the best HEPA air purifier models is the Breathe Fresh Air HEPA Filter Ionic Ionizer Air Purifier. While it may not look as the most modern equipment out there, it certainly makes up for its look through its stellar features and performance.

Key Features

1. HEPA Filter

The External HEPA filter of this unit is upgraded for better performance. It is equipped with an ionizer, UV sterilizer and Ozone plates. All these things come together to give you a very efficient air purification system. Its UV sterilizer removes all airborne germs and viruses. This makes it ideal for those who have asthma or allergy-related problems.

2. Odor Removal

It can remove odors that occur due to cooking, pets and smoke in the house. Its ozone deodorizer removes all forms of bad odors and unpleasant smells.

3. Ideal for all sorts of rooms and areas

Breathe Fresh Air HEPA Filter Ionic Ionizer Air Purifier can be used in areas that are equal to or less than 3,500 square feet. It can be used in homes, hotels, smoking areas, bars, nursing homes, medical offices and many other places to meet the air purification needs.

4. Durable construction

While it may not offer a lot to look at it, it is made using dark hardwood which adds to the finish quality. This also makes this air purifier durable. The internal parts are made using stainless steel. Since majority of it is handmade, you will get an air purifier that is unique in its own way!

In the Box

With this unit, you will get an air purifier, HEPA Filter, UV Sterilizer, Spare Fuse and 2-ozone plates that are pre-installed. A user guide and power cord are also included.


For someone who loves eccentric-looking things, the Breathe Fresh Air HEPA Filter Ionic Ionizer Air Purifier is surely appealing in terms of design. It functions just like any other quality air purifier and does the job well. However, a major disadvantage is the warranty. You will only get a 1-month unconditional money-back guarantee on it. It is not cheap at all and thus you should only go for it if you have unconditional faith in the manufacturer!


  • Unique design
  • UV sterilizer gets rid of all germs
  • Deodorizer removes all bad odors from the air
  • All necessary equipment are provided


  • Warranty coverage is just for 1 month