The 10 Best Air Purifiers

Updated January 12, 2018 by Sam Kraft

10 Best Air Purifiers
Best High-End
Best Mid-Range
Best Inexpensive
We spent 43 hours on research, videography, and editing, to review the top choices for this wiki. Airborne particles and contaminants can pose a variety of health risks, particularly to asthmatics and people who suffer from allergies. These air purifiers remove things like pollen, dust and smoke from the air, making your home a safer and healthier place in the process. Some models are designed with HEPA filters and other advanced technologies as well. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best air purifier on Amazon.

10. GermGuardian Elite

The GermGuardian Elite features five speeds, so you can decide how much power you want to dedicate to eradicating germs, bacteria and mold spores from the air. Its charcoal filters are particularly effective in removing odors due to pets and cooking.
  • available in black or white
  • stands twenty-eight inches tall
  • blue light is too bright at night
Brand Guardian Technologies
Model AC5350BCA
Weight 13.3 pounds
Rating 3.9 / 5.0

9. Honeywell True

With a high-strength HEPA filter and far-reaching airflow, the Honeywell True is ideal for allergy and asthma sufferers. It is powerful enough for rooms of up to nearly 400 square feet in size, yet it measures in at just 18 inches in diameter.
  • 5-year limited warranty
  • filters can be vacuumed clean
  • high setting is quite noisy
Brand Honeywell
Model 50250-S
Weight 21.9 pounds
Rating 3.8 / 5.0

8. Pure Zone

Even on its highest setting, the Pure Zone emits only a soft hum, so you won’t have to worry about distracting noises at all hours of the day and night. You can run it constantly, but it has a variety of timer settings should you want to set up a schedule.
  • nice value for its effectiveness
  • lightweight and easy to transport
  • may leave the air rather dry
Brand Pure Enrichment
Weight 8.5 pounds
Rating 4.1 / 5.0

7. Winix Ultimate

Using built-in smart sensors, the Winix Ultimate constantly monitors the surrounding air. When it senses a change in air quality, it will automatically adjust its running speed to keep up with the amount of pollutants and contaminants it detects.
  • carbon filter removes pet odors
  • remote control holder
  • light sensor does not work well
Brand Winix
Model WAC9500
Weight 24.4 pounds
Rating 3.5 / 5.0

6. Hamilton Beach TrueAir

The compact and budget-friendly Hamilton Beach TrueAir is most effective for rooms in the neighborhood of 160 square feet in size. A HEPA filter keeps airborne allergens at bay, and you can clean it with just about any vacuum.
  • 3 ultra-quiet speed settings
  • no replacement filters required
  • easy to tuck away under furniture
Brand Hamilton Beach
Model 04383A
Weight 6.5 pounds
Rating 3.9 / 5.0

5. Winix 5500-2

Suitable for rooms of up to 360 square feet, the Winix 5500-2 promises to eliminate all but the smallest particles from your life. Its advanced technology works to break down and remove chemical vapors and similar pollutants as well.
  • sleep mode for nighttime operation
  • includes a remote control
  • effective at removing smoke odors
Brand Winix
Model 5500-2
Weight 20.7 pounds
Rating 4.8 / 5.0

4. Levoit PUR131

Once the surrounding air is pulled in by the Levoit PUR131, it must travel through a fine preliminary filter, a true HEPA filter, and finally a robust carbon filter. To the bacteria, odors and dust particles trying to make it out the other side, we wish you good luck.
  • air quality indicator
  • highly visible display screen
  • easy to remove rear cover
Model LV-PUR131
Weight 15.1 pounds
Rating 4.8 / 5.0

3. Honeywell HPA300

For a model as powerful and speedy as the Honeywell HPA300, it’s surprisingly simple to operate and virtually silent while it’s running. You can switch off the light on the control panel if it annoys you at night, and it comes with a five-year limited warranty.
  • replacing filters is simple
  • front grille is thick and durable
  • weighs 21 pounds
Brand Honeywell
Model HPA300
Weight 24.5 pounds
Rating 4.6 / 5.0

2. Coway Mighty

The Coway Mighty works quickly and efficiently, so you'll be breathing easier within a few minutes of plugging it in. It’s designed with particle-sensing technology that will automatically change the settings if needed, and it has three speeds for controlling the air flow.
  • attractive minimalist design
  • pulls in air from all directions
  • three timer settings
Brand Coway
Model AP-1512HH
Weight 18.1 pounds
Rating 4.5 / 5.0

1. Airmega 300S

If you need a solution for very large, heavily polluted rooms, the Airmega 300S is a quality solution. It features timer and speed controls, filter monitoring, and valuable reports via its companion mobile app, so you can ensure it's working from anywhere.
  • easy to access controls
  • filter lifespan indicator
  • built-in handles for portability
Model 111359
Weight 27.7 pounds
Rating 4.6 / 5.0

How Do Common Air Purifiers Work?

There are many different air purifiers in the modern era. While they all may seem like recent developments; some air purification systems have been around for centuries. The most common name in the realm of air purifiers is the HEPA system. The HEPA system has enjoyed recent popularity, but it was actually developed in World War II. An abbreviation for high efficiency particulate air; HEPA filters were originally designed to remove radioactive waste materials and dust particles from the air to protect soldiers' respiratory systems.

UV light systems are also popular air purification options. Medical grade ultra-violet light can quickly kill bacteria, viruses, and fungal spores as the air circulates through the filter, protecting both the room and the filter itself from mold inoculation and microbial buildup. Another type of air purifier uses electrostatic precipitators which harness an electrical charge to remove particles from the air.

Carbon filtration may be one of the most simple systems, yet its effectiveness is unquestioned. Carbon filtering is the process of pushing air through a bed of activated carbon to remove impurities. Activated carbon is highly absorbent due to its large surface area. It is said that one teaspoon of activated carbon has the surface area of an entire football field. This surface area allows activated carbon to cling to and absorb a large number of contaminants.

The question remains, are air purifiers effective? From a scientific standpoint the answer is a resounding yes. In multiple studies considering the effectiveness of air purifiers in treating patients with allergic rhinitis and asthma, research suggests that purifiers successfully reduce allergic respiratory symptoms to various degrees. Patients with allergies in the fall or winter months and/or perennial allergic rhinitis were the most commonly studied. In rooms with active air purifiers, there was a seventy percent reduction in airborne particulates on average. The absence of respiratory infection coupled with patients' suggestive responses showed a high degree of effectiveness using air purifiers.

Is It Possible To Treat Allergies With Your Diet?

While air purifiers are a must have for anyone suffering from allergies, asthma, or seasonal rhinitis, many look to supplement this treatment through their dietary intake. The possibility of dietary influences to respiratory conditions cannot be overlooked, Many of the aggravating factors of these conditions exist within various foods. Can a simple change of diet help ameliorate symptoms of allergies and asthma?

Recent published studies have indicated that probiotics may be a successful secondary treatment to allergies. Beneficial bacterial strains include Lactobacillus acidophilus and Bifidobacterium longum, which traditionally inhabit the human digestive system. Largely due to over-processed dietary intake, pasteurization, and antibiotics, the presence of these beneficial microbes in the average human is dwindling.

The ingested live microbes can modify the composition of the intestinal flora in a way that benefits the host. Reintroduction of these bacterial strains through probiotic supplementation shows many benefits, such as properly equipping the body's immune system to reduce allergic reactions and asthmatic symptoms.

The clinical benefit of probiotics depends upon numerous factors including the type of bacteria, dosing, delivery method, and the age and overall diet of the host. For instance, a host eating a western pattern diet will find much less benefit than one who eats a well balanced diet comprised of unprocessed foods.

Why Is There A Need For Air Purifiers?

The prevalence of respiratory disorders such as allergic rhinitis and asthma continually increase worldwide. The World Health Organization estimates over 700 million people are affected by these respiratory illnesses.

As up to ten percent of the world's population is affected by allergic rhinitis, it the most common form of non-infectious rhinitis globally. Allergic rhinitis is, by simple definition, the presence of nasal congestion, sneezing, itching, and inflamed nasal mucosa. The severity of allergic rhinitis differs in patients, ranging from mild to near debilitating levels. Asthma is a condition marked by spasms in the bronchi of the lungs, which causes breathing difficulties. Asthma is usually connected to an allergic reaction to airborne pollutants or hypersensitivity to particles in the air.

Allergies or asthma can have a severe impact on a patient's quality of life. The symptoms can impact relationships, work life, physical function, mental cognition, and psychological feelings of wellness. Secondary disorders caused by allergies and asthma include sleeping disorders, learning and attention impairment, mouth breathing and associated dental malocclusion, and increased risk of upper respiratory infection. As the severity and complexity of respiratory diseases continues to grow, patients and health practitioners alike look for effective solutions.

Now more than ever, patients have the ability to reduce their symptoms by reducing airborne irritants with an air purifier. Allergens such as bacteria, viruses, fungal and mold spores, pet dander, pollen, and chemical pollutants can take a toll on anyone's respiratory system, not just those with allergies. As most of these pollutants are not seen by the naked eye or absorbed by anything around the home, the best way to remove these potentially harmful substances is through the use of an air purifier.

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Last updated on January 12, 2018 by Sam Kraft

Sam is a marketing/communications professional and freelance writer who resides in Chicago, IL and is perpetually celebrating the Cubs’ 2016 World Series victory.

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