10 Best Air Purifiers for Office in 2021 Compared & Reviewed

Best Air Purifiers for Office
Photo: Hamilton Beach

An air purifier can transform the air quality of your office space, boosting the health of its occupants by eliminating pollutant particles such as dust, pollen, and smoke.

It will even remove allergens such as pet dander, and other microbial agents that aggravate respiratory issues.

There are plenty of purifiers suited for different room sizes, including large, medium, and small ones, and most pack efficient HEPA filters.

Check our air purifiers for office review to help you pick the most ideal one for your space.

What To Check Before Buying Office Air Purifier?

How to Buy the Best Air Purifiers for Office
Photo: sylvane.com

1. Coverage Area

This is one of the most important considerations to make when choosing an air purifier for the office. Ultimately, the purifier you get needs to clean the intended space efficiently.

Typically, the area is represented in square feet (sq. ft.), and most air purifier models will be rated for different coverage areas.

If you have a large office space of 1000 feet and over, consider getting Bissell air320 2768A or Levoit LV-H134, both of which offer superior coverage.

2. Filter Technology

Besides coverage, your office air purifier’s efficiency will depend largely on the filter technology it uses, which is closely tied to filter quality.

The most efficient air purifiers use industry-leading High-efficiency particulate air (HEPA) filters, which are rated for removal of at least 99.97% of contaminant particles including dust, pollen, mold, bacteria, and many more, from the air passing through them.

All the models in our list come fitted with HEPA filters, but their life may vary depending on usage and capacity.

3. Speed Settings

Air purifiers provide operational flexibility through their multiple speed settings. Most models offer at least 3 fan speed levels, while some go up to 5.

The idea behind speed settings is that when the purification demands are low, you can select slower fan speeds, typically 1 and 2, which also reduce power consumption and noise output.

But sometimes, high fan speeds may be needed when the air is highly contaminated by particles such as dust, or even smoke and odor. In such cases, robust options such as the 5 in Bissell air320 2768A will come in handy.

4. Extra Features

Any extra features that seek to boost an appliance’s productivity are always welcome. One of the handiest extra features offered by air purifiers is a remote control, especially for office use.

With a remote control, you can operate the purifier conveniently, at any spot within the room, sometimes without ever having to move. The Oransi OV200 comes offers a remote-control feature.

Wi-Fi connectivity is another convenient feature that also enables remote purifier control through a smartphone app. The RabbitAir SPA-780N and Blueair Classic 480i both support Wi-Fi connectivity.

5. Energy Consumption

The amount of power your air purifier consumes will have an impact on energy costs, especially in the long term. That’s why when choosing a purifier for the office, it’s important to consider the model’s power-efficiency.

You’ll be pleased to know that our top purifier peaks are very economical in their energy consumption. Most of them draw less than 100 watts even at peak power. And when running at slow fan speeds, they consume even less power, often up to 50 watts, or slightly more.

6. Sound Level

The general rule for most of the appliances we have at home and in offices is that the quieter they run, the better. And the air purifier is no exception to this rule.

Typically, your air purifiers noise production reduces with as fan speed lowers. The noise produced at fan speeds 1 and 2 is significantly lower that of levels 3, 4, or even 5.

Low noise outputs of less than 25 dB, such as those of Levoit Vital 100 and Alen BreatheSmart 45i ensure the least disturbance from your air purifier as it runs in the office.

7. Portable

The portability of your air purifier depends largely on its weight and size. Heavy models air typically harder to move around, especially in the office.

While the idea is to go lightweight when seeking to boost portability, this gain may come at the cost of performance as the heavier units tend to pack more power.

Compact purifiers, such as Oransi OVHT9908, work well in tight spaces, and will even sit on an office desktop for efficient space utilization.

10 Best Air Purifiers for Office in 2021 Reviewed




Winix 5500-2

1. Winix 5500-2 (Best Overall)

  • Superior 4-stage filtration
  • Optimal 360 sq. ft. coverage
  • 4 automatic fan speeds
  • Real-time air quality monitoring
Levoit Vital 100

2. Levoit Vital 100 (Best Budget)

  • Reasonable pricing
  • Efficient 3-stage filtration
  • Energy-saving performance
  • Low noise output
Bissell air320 2768A

3. Bissell air320 2768A (Best for the Large Office)

  • Superior 1,000 sq. ft. coverage
  • Real-time air quality readings
  • Functional & integrated design
  • 5 versatile speed options
Alen BreatheSmart-FLEX-Pure

4. Alen BreatheSmart-FLEX-Pure (Most Efficient)

  • Low power consumption
  • Long 9 – 12-month filter life
  • Antimicrobial filter compound
  • Sleek space-saving design
RabbitAir SPA-780N

5. RabbitAir SPA-780N (Best User-Friendly)

  • Convenient wireless control
  • Advanced 6-stage filtration
  • Large 815 sq. ft. room coverage
  • 2 flexible setup options
Levoit LV-H134

6. Levoit LV-H134 (Most Versatile)

  • Adaptable 710 – 1,170 sq. ft. coverage
  • Ideal for allergens reductions
  • Smart auto air quality monitoring
  • Efficient 360° suction
Oransi OVHT9908

7. Oransi OVHT9908 (Best for Office Desktops)

  • Space-saving tower design
  • Contemporary stylish finish
  • Extended 2-year filter life
  • 2 bonus pre-filters
Oransi OV200

8. Oransi OV200 (High-Quality & Durable)

  • Efficient anti-allergen filter
  • Simple & intuitive user interface
  • Flexible remote control
  • Long 10-year warranty
Blueair Classic 480i

9. Blueair Classic 480i (Ideal for Allergens Reduction)

  • Durable & strong steel build
  • Superior filtration system
  • Wireless control over Wi-Fi
  • Auto fan speed adjustment
Alen BreatheSmart 45i

10. Alen BreatheSmart 45i (With Low Noise Output)

  • Low 23 dB noise at slow speeds
  • Large 800 sq. ft. space coverage
  • Slim space-saving design
  • Auto air quality monitoring

1. Best Overall: Winix 5500-2

Winix 5500-2

Photo: Winix

  • Coverage Area: 360 sq. ft.
  • Filter Technology: True HEPA
  • Fan Speed: 3
  • Noise Level: 27.8 – 60 dB

The advanced 4-stage filtration system, reasonable pricing, and optimal room coverage make Winix 5500-2 our best overall purifier for office.

This top-rated air purifier cleans your air through an elaborate 4-stage system which included a washable fine mesh pre-filter, washable AOC carbon filter, a true HEPA filter, and Winix’s PlasmaWave Air Cleaning for airborne bacteria and virus reduction.

The purifier has an effective CADR rating of up to 360 sq. ft., which means it will efficiently clean the air mid-sized offices, and other similar spaces.

For ease of use, the purifier features a built-in air quality sensor, which adjusts the fan speed automatically between low, medium, and high settings, in real-time.

Also, you can easily keep track of air quality shifts in real-time, thanks to an LED indicator, which changes accordingly.

At the highest fan setting (4), however, you may notice that Winix 5500-2 can get pretty loud with noise levels hitting highs of 60 dB.


  • Advanced filtration
  • Optimal room coverage
  • Automatic robust fan speeds
  • Real-time air quality tracking


  • Gets loud at highest fan speed

2. Best Budget: Levoit Vital 100

Levoit Vital 100

Photo: Levoit

  • Coverage Area: 300 sq. ft.
  • Filter Technology: H13 True HEPA
  • Fan Speed: 3
  • Noise Level: 23 – 50 dB

Levoit Vital 100 is not only a pocket-friendly air puffier for office, but it also runs very efficiently, to minimize your energy costs while providing reliable air cleaning.

Through its reliable 3-stage filtrations, which comprises a washable preliminary filter, an H13 true HEPA filter, and an activated carbon filter, this purifier will rid your office of fibers, hairs, dust, pollen, mold spores, and even odors such as cooking smells, VOCs and smoke.

You’ll enjoy using this purifier for its energy efficiency. With a power draw of 55W, it utilizes very little energy ensuring that your electricity costs don’t skyrocket, even with daily usage.

At low fans speeds, the unit runs with an impressively low noise output of 23 dB, making it one of the quietest in the list.

On the downside, however, Levoit Vital 100’s coverage of only 300 sq. ft. is rather low, especially compared to other rival models.


  • Pocket-friendly pricing
  • Reliable 3-stage filtration
  • Low power consumption
  • Runs quietly at low fan speeds


  • Room coverage could be higher

3. Best for the Large Office: Bissell air320 2768A

Bissell air320 2768A

Photo: Bissell

  • Coverage Area: 1000 sq. ft.
  • Filter Technology: True HEPA
  • Fan Speed: 5

If you have a large office space whose air requires cleaning, go for Bissell air320 2768A air purifier, which is rated for superior coverage of up to 1000 sq. ft.

Since you want maximum convenience from an office appliance, this purifier features an automated CirQulate that performs real-time air quality monitoring and then adjusts its fan speeds automatically to reflect these changes.

To maintain neatness and organization, the purifier has an integrated and functional design, which features a discreet cord wrap, front-panel filter access, and intuitive, easy-to-use controls.

It offers you 5 robust fan speeds, which boost operational flexibility by supporting a high degree of personalization. At low speeds, the purifier is runs quietly.

Because Bissell air320 2768A is a high-performance air purifier, it weighty at 18.25 lbs. and also chunky. Its portability may be slightly limited.


  • Purifies large spaces
  • Real-time air quality monitoring
  • Convenient minimalist design
  • Many fan-speed options


  • Not very portable

4. Most Efficient: Alen BreatheSmart-FLEX-Pure

Alen BreatheSmart-FLEX-Pure

Photo: Alen

  • Coverage Area: 700 sq. ft.
  • Filter Technology: H13 True HEPA
  • Fan Speed: 4
  • Noise Level: 39 – 55 dB

Alen BreatheSmart-FLEX-Pure air purifier was built to provide premium air cleaning at the highest energy efficiency.

The unit draws only 35 watts of power to purifier 700 sq. ft. office spaces in just 30 minutes. And even when in turbo mode, power consumption peaks at 50 watts only. Such a degree of efficiency makes the BreatheSmart-FLEX-Pure a great cost-saving purifier.

Another efficiency-boosting feature is its long filter life of 9 – 12 months. You won’t be replacing the HEPA filter any time soon because it lasts 3 – 5 months longer than standard ones.

Speaking of filters, the ones on this purifier also include and antimicrobial compound, which helps with bacteria, fungi, and mold removal.

The entire unit assumes a sleek design, which allows the purifier to fit well in tight spaces, boosting its office suitability.

At the lowest fan speed, however, the 39 dB noise output is rather high compared to that of quieter models such as Alen BreatheSmart 45i.


  • Low power consumption
  • Premium and durable HEPA filter
  • Antimicrobial filter capacity
  • Design optimized for tight spaces


  • Could be quieter at low fan speed

5. Best User-Friendly: RabbitAir SPA-780N

RabbitAir SPA-780N

Photo: RabbitAir

  • Coverage Area: 815 sq. ft.
  • Filter Technology: BioGS True HEPA
  • Fan Speed: 5
  • Noise Level: 25.6 – 51.3 dB

The user-friendliness convenience and setup flexibility of the RabbitAir SPA-780N air purifier is unrivaled, making it a worthy office companion.

This purifier takes usability to new heights thanks to its wireless capabilities. The unit comes Wi-Fi-enabled, allowing you to control it remotely, through the Rabbit Air App, on your smartphone.

Besides convenient and flexible usage, this purifier boasts of a superior 6-stage filtration process, which eliminates a wide variety of particles, allergens, germs, and odors, while fortifying the air you breathe, to preserve office freshness.

On top of the high 815 sq. ft. room coverage supported by the SPA-780N, it also offers setup flexibility. You can use it as a standalone unit, or mount it on the wall. You never have to worry about limited floor space.

The premium features of RabbitAir SPA-780N do, however, make it very pricey and inaccessible to the budget buyer.


  • Wireless control capability
  • Superior filtration system
  • Decent room coverage
  • Flexible setup options


  • Pricey for the budget buyer

6. Most Versatile: Levoit LV-H134

Levoit LV-H134

Photo: Levoit

  • Coverage Area: 710 – 1,170 sq. ft.
  • Filter Technology: H13 True HEPA
  • Fan Speed: 3
  • Noise Level: 25 – 54 dB

The ability of Levoit LV-H134 to vary performance across different room sizes makes it a highly versatile air purifier for office.

It is suited for both large and small rooms and will clean the air in spaces of up to 1,170 sq. ft. within 30 minutes, and smaller 710 sq. ft. rooms in just 18 minutes. This performance makes the purifier excel in office and even home applications.

If you’re conscious about allergen risks, this purifier eliminates them using a premium H13-grade true HEPA filter. It effectively removes dust, mold, pollen, germs, and different odors.

A smart auto mode function will automatically detect particles in the air using a laser sensor and then adjust the fan speed in response to the prevailing air quality.

The unit also adopts a 360° suction to pull in contaminated air from multiple sides while pumping out clean air from the top.

We did notice, however, that at maximum fan speed, the Levoit LV-H134 can get pretty loud.


  • Versatile variable-space purifier
  • Effective allergen reducer
  • Automatic fan speed adjustment
  • Powerful multi-directional suction


  • Gets loud at high fan speeds

7. Best for Office Desktops: Oransi OVHT9908

Oransi OVHT9908

Photo: Oransi

  • Coverage Area: 400 sq. ft.
  • Filter Technology: True HEPA
  • Fan Speed: 3
  • Noise Level: 40 – 60 dB

The tower design of Oransi OVHT9908 allows it to occupy very little resting space, making this air purifier ideal for use of office desktops.

Sleekness and horizontal space economy are boosted by the appliance’s neutral color and contemporary stylish design to boost appearance even when fully exposed.

You can count on the purifier’s high-efficiency filters to eliminate a wide range of particles from the air, including dust, allergens, pollen, mites, and other impurities in varying sizes.

And the pre-filters offer you maximum value with their extra-long life of 2 years. Besides, Oransi offers you 2 bonus pre-filters with this unit. Combined, the filters guarantee near maintenance-free operation for at least 1 year.

A potential downside of Oransi OVHT9908 is its elevated loudness both at the lowest and highest fan speeds, which produce 40 dB and 60 dB of noise, respectively.


  • Economic on horizontal space
  • Stylish and elegant
  • Efficient long-life filters
  • Bonus cost-saving filters


  • Can get noticeably loud

8. Ideal for Allergens Reduction: Oransi OV200

Oransi OV200

Photo: Oransi

  • Coverage Area: 400 sq. ft.
  • Filter Technology: True HEPA
  • Fan Speed: 3
  • Noise Level: 30 – 54 dB

Oransi OV200’s elaborate and efficient filtration system has been optimized for the removal of common allergens from the air around you, especially in your home office.

It delivers efficient air filtration through a true HEPA filter, which is top-rated in dust spores, and pet dander removal. The appliance works great of reduce nasal stuffiness and asthma-triggering contaminants.

The purifier is incredibly easy to operate through its simplified controls. Simply plug in the unit, and select your desired fan speed. A multi-function remote control has been added to boost operation flexibility.

You are guaranteed of the purifier’s quality and low running costs thanks to a combination of extended 12-month filter life and a generous 10-year warranty.

An issue we encountered with the Oransi OV200 is that even though it offers a long filter life, replacement filters are pricey.


  • Optimized for allergen removal
  • Simplified user interface
  • Convenient remote control
  • Long filter life and warranty


  • Pricey replacement filters

9. High-Quality & Durable: Blueair Classic 480i

Blueair Classic 480i

Photo: Blueair

  • Coverage Area: 430 sq. ft.
  • Filter Technology: True HEPA
  • Fan Speed: 3
  • Noise Level: 32 – 52 dB

The premium steel construction of Blueair Classic 480i makes it a high-quality and durable air purifier that will last years while cleaning your office air with consistent reliability.

It comes equipped with a high-performance true HEPA filter, which captures a wide range of airborne pollutants, including dust, mold, pollen, and other allergens.

The purifier also accepts dual-protection filters with activated coconut carbon. These filters effectively remove gaseous pollutants such as smoke without requiring any chemical additives.

For easy and convenient operation, the purifier is Wi-Fi enabled. Through the Blueair friend app running on your smartphone, you can control the unit remotely, at your convenience.

There are smart sensors built into the purifier for real-time air quality monitoring. When changes in quality are detected, the fan speed is adjusted automatically.

Blueair Classic 480i’s durability does come at a steep cost, as this is the most expensive model on our list.


  • Premium steel construction
  • Efficient filtration system
  • Supports wireless control
  • Real-time air quality monitoring


  • Pricey for buyers on a budget

10. Low Noise Output: Alen BreatheSmart 45i

Alen BreatheSmart 45i

Photo: Alen

  • Coverage Area: 800 sq. ft.   
  • Filter Technology: True HEPA
  • Fan Speed: 4
  • Noise Level: 23 – 49 dB

At the lowest fan speed, the Alen BreatheSmart 45i office air purifier runs very quietly with a noise output of just 23 dB. It is one of the quietest appliances you can get to improve the quality of your office space.

The purifier is suited for medium-to-large spaces with its high coverage of 800 sq. ft. It will clean the air in this space efficiently, in as little as 30 minutes.

Because this purifier assumes a sleek design it fits in very tight spaces and succeeds in maintaining a low, non-invasive profile.

A smart sensor has been built into the unit for automatic air quality detection, and fan speed adjustment for more effective air cleaning.

Powering off the Blueair Classic 480i may prove confusing at first, but that’s because you need to press the power button twice to toggle between light and no-light options.


  • Runs quietly especially at low speeds
  • Large room coverage
  • Sleek non-invasive design
  • Automatic fan speed adjustment


  • Non-standard power button


It’s no doubt that air purifiers stand to add a lot of value to your office space by boosting air quality.

If you want the best of them all, choose Winix 5500-2, an inexpensive, efficient, and compact air purification unit that is also easy to use and ideal for small-to-medium rooms.

If you’re on a tight budget but still desire a quality air purifier, pick the more affordable Levoit Vital 100, which is ideal for small spaces.

And for a large office space that demands a high-performance purifier, Bissell air320 2768A is a wise choice.