Common Office SpaceAre you trying to avoid contaminated air at your office?

Do you want to reduce the amount of dust, allergens, bacteria, or viruses that may be floating around?

If so, this guide can help.

Below, you’ll find a complete buying guide on how to find the best air purifier for office spaces—large to small.

If you’re looking for the best office air purifier that can keep the air around you clean and fresh, then you’ll find everything you need on this page.

First, we’ll go over the top features you need to look for in a high-quality workplace air purifier, then we’ll show you how to pick the right size device for your needs, and finally, we’ll review the best air purifiers you can buy for every size office.


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In a hurry? Here’s a glimpse of the two best products you can get.

You’ll find out more about these air purifiers in the detailed reviews and buying guide below.

Top PickAIRMEGA 400S

Second BestIQAir HealthPro Plus

Office Air Purifier Buying Guide

In order to get the best air purifier for your office, there are a few things you need to take into consideration before making a purchase.

Not all air purifiers are made the same and if you buy the wrong type it won’t work as well as you’re hoping inside a workplace.

So, to make sure you’re only investing in a hiqh-quality air purifier that can meet the demands of an office space, we’ve put together the following tips for you.

Top Filters to Look for (And What They Do)

In an office, there are so many different pollutants that can be present in the air.

With so many different people coming and going, and various office equipment running, a workplace can easily be filled with high levels of contaminants.

To keep the as fresh and clean as possible, you’ll want an air purifier that has at least these two filters:

  • True HEPA Filter
  • Activated Carbon Filter

And optionally:

  • Ultraviolet Light

True HEPA Filter Explained

The True HEPA Filter is crucial in the best office air purifier because it’s the only type of air filter that can trap 99.97% of microscopic particles down to 0.3 microns in size. This includes common office pollutants like dust, allergens, mold spores, bacteria, PM2.5 (from automobile and factory exhaust smoke), etc.

When shopping for an air purifier, you may come across devices that don’t use the word “True” in the name for their air filter. If so, you should stay away from those models.

Air purifiers that use words like “HEPA”, “HEPA-type”, or “HEPA-like” are less efficient than a True HEPA filter. A True HEPA filter is the only kind that has been certified to capture the ultrafine pollutants that do the most harm to your health.

Activated Carbon Filter Explained

The Activated Carbon Filter is another must-have feature in the best air purifier for office buildings because it grabs the particles that a True HEPA filter misses.

In an office, there are lots of contributing factors to what are called “Volatile Organic Compounds” or “VOCs”. VOCs are invisible gases and chemical vapors that are emitted by both office equipment, like printers and fax machines, and the building materials that make up the workplace, such as carpeting, paint, drywall, etc. VOCs “off-gas” from these products and this process can last for years.

Chemical cleaning agents also emit VOCs and the particles can linger in the air for hours and sometimes days before they’re gone.

The most common side effects of being exposed to office VOCs are eye, nose, and throat irritation; headaches, loss of coordination, and nausea. And, the impact of long-term exposure can lead to liver, kidney, and central nervous system damage.

Because of how a True HEPA filter is made, the material can’t capture VOCs—they float right through it. But, an Activated Carbon filter can. It’s made of a special substance that traps VOCs on the surface without letting them get through the air purifier.

Another added bonus of an Activated Carbon filter is that it can reduce odors in the workplace too. Odors are made of gaseous molecules in which this type of filter is designed specifically to remove.

Ultraviolet Light (Another Nice Feature to Have)

A third feature you may want to consider in your office air purifier is an Ultraviolet light, also known as a UV-C light.

A UV-C light is a bulb inside the air purifier that emits a low level of radiation. As air passes by it, the UV-C light disrupts the DNA structure of bacteria and viruses and essentially kills them.

Not all air purifiers include an Ultraviolet light but if you can find one it’s worth buying for an office because it can keep the air around you more sterile.

Office environments are known for spreading germs, especially during flu season, and an Ultraviolet light can help reduce the level of microbes and pathogens that are floating around the room.

Picking the Right Size Air Purifier

Now that you know what air purification features to look for in an air purifier, the next step is picking the right size product.

Every air purifier is designed to cover a specific amount of space.

Some air purifiers are made for large open office spaces while others are better suited for a small cubicle.

To get the right size air purifier for your workspace, just follow this rule of thumb:

  • Try to meet or exceed the square footage of your office area. Square footage (sq. ft.) is equal to the length x width of the room.

For example, a 40′ x 38′ office space would = 1,520 sq. ft.

And a 10′ x 10′ cubicle would = 100 sq. ft.

To make things easy for you, we’ve listed the best air purifiers for every size office space below.  In our reviews, you’ll find options for extra-large community rooms down to small cubicles and home offices.

The goal here is to make it easy for you to find the best air purifier for your individual needs.

The Best Air Purifiers for Office Spaces (By Room Size)

Below, you’ll find the top air purifier products for every size office space.

We’ve started with the highest-quality unit that has the largest square footage coverage and worked our way down.

That way, you can find the model that best matches the size of your workplace environment.

Disclosure: At Home Air Quality Guides, we believe in an education-first philosophy. We never make product recommendations until after we educate our readers on what to look for in the top-performing devices and then only suggest items that meet those specific criteria. As an Amazon Associate, we earn from qualifying purchases made through the links below. If you buy a qualifying product, you’re not charged a penny more, but we’ll get a small commission that supports our work. We hope you enjoy this free guide and find the best product for your needs through these recommendations.

Best for Extra-Large Office Spaces

AIRMEGA 400S Air PurifierAIRMEGA 400S Air Purifier for Office

Covers 1,560 sq. ft.

If you’re looking for the largest and best air purifier for office spaces, this is going to be your top choice.

Not only does it offer some of the widest coverage available, but it also has two features that make it excellent for office environments:

  • Wi-Fi Smart App Control
  • Max2 Combination Air Filter

With the Wi-Fi smart app, you can control every aspect of this air purifier from a mobile device. You can also track the indoor air quality levels and get real-time alerts to your phone.

The Max2 air filter combines a True HEPA filter with an Activated Carbon filter into one single cartridge. This makes filter replacement quick and easy to do, which is crucial in a fast-paced workplace. There are no difficult instructions to follow or multiple filters to hunt down and buy.

Finally, this air purifier captures 99.97% of office contaminants as small as 0.3 microns as well as 99% of volatile organic compounds and gaseous fumes such as NH3 and CH3CHO.

For an extra-large office space, this air purifier is hard to beat for both air filtration and convenience.

See Amazon.com Reviews

Best Office Air Purifier for Large Work Areas

IQAir HealthPro Plus Air PurifierIQAir HealthPro Plus Office Air Purifier

Covers 1,125 sq. ft.

The next best office air purifier you can buy for larger work areas is this highly popular model right here.

It’s a step down in square footage coverage but has a more powerful True HEPA filter than the previous air purifier review.

In fact, the HyperHEPA filter that this unit includes can capture 99.95% of ultrafine particles down to 0.003 microns. That’s 100X smaller than the average HEPA air purifying machine.

A separate V5-Cell Gas and Odor Filter is included that extracts airborne chemical pollutants that come from office equipment and indoor building materials. The filter is made with 5 lbs. of granulated activated carbon and impregnated alumina.

If you want a cleaner, healthier workplace that has less dust, pollen, soot, smoke, mold spores, bacteria, and viruses, this is the air purifier to buy.

Another major benefit of this machine is that it’s a very cost-effective solution. The HyperHEPA filter lasts up to 4 years and the V5-Cell Gas and Odor Filter lasts up to 2 years. You won’t find any other air purifier for the office that can match those numbers.

See Amazon.com Reviews

Best Air Purifier for Average Size Offices

Rabbit Air MinusA2 Air PurifierRabbit Air MinusA2 Air Purifier

Covers 700-815 sq. ft.

If you’re looking for the highest quality air purifier for an average size community workspace, this product will meet all of your needs and more.

What makes this the top air purifier for office community areas is that it includes a 6-stage air purification process that creates the cleanest, freshest air possible:

  1. Pre-filter – Captures the largest particles and prolongs the life of the other internal filters.
  2. Medium Filter – Removes large allergens and dust particles from the air.
  3. BioGS HEPA Filter – This is an extra-long life version of a True HEPA Filter that strips 99.97% of allergens, dust, pollen, and mold particles down to 0.3 microns. It also lasts up to 3 years.
  4. Activated Carbon Filter – For reducing office odors and chemical vapors that come from equipment and building materials.
  5. Customized Filter – This is really where this air purifier shines. It allows you to customize the product to suit your specific office needs. Choose between an Enhanced Germ Defense, Toxin Absorption, Pet Allergies, or Odor Elimination filter.
  6. Ion Generator – This technology creates an ionic field to further neutralize airborne contaminants without producing any harmful side effects.

Two other things that make this air purifier an excellent choice for any workspace is that it can be wall mounted and offers a variety of front panel colors and designs to match your current office style.

See Amazon.com Reviews

Top Model for Larger Personal Offices

SilverOnyx Air PurifierSilverOnyx

Covers 500 sq. ft.

Do you have your own office?

And want an affordable office air purifier that works well for your own personal area?

If so, this model may be the perfect match for you.

What makes it so great is that it creates the healthiest air possible by not only removing harmful airborne contaminants but also destroying microorganisms that can make you sick.

The True HEPA filter captures 99.97% of particles down to 0.3 microns and the Activated Carbon filter cuts down on office odors and chemical gases. Plus, the filter set comes in a cylindrical design that allows the unit to draw air in from 360-degrees.

But, the Ultraviolet light is where this unit really shines.

The UV-C technology in this air purifier sterilizes every bit of air that passes through the system. All pathogens and bacteria that flow through the unit are zapped and rendered harmless to your health. This means the air around you in your office is healthier to breathe and less polluted with microorganisms that can make you sick.

See Amazon.com Reviews

Top Air Purifier for Smaller Personal Offices

Levoit LV-PUR131 Air PurifierLevoit LV-PUR131

Covers 322 sq. ft.

If your office is on the smaller size, then you don’t need to spend the extra money on an extremely powerful air purifier.

By investing in this air purifier here, you can save a lot of cash and get the purified air you need in your personal office space.

It includes a 3-stage air purification system that has:

  • Pre-Filter – To capture the largest particles and extend the life of the other filters.
  • True HEPA Filter – For trapping 99.97% of office pollutants down to 0.3 microns in size.
  • Activated Carbon Filter – For eliminating odors, gases, chemicals, and other common workplace contaminants.

Another benefit of this product is that it comes in a smart-enabled. So, you can choose between the standard device that operates with touch panel controls or upgrade to Wi-Fi controlled version for a few dollars more.

All-in-all, this is one of the best and cheapest office air purifiers you can buy today that includes premium air filters.

See Amazon.com Reviews

Best Air Purifier for Office Cubicles and Small Home Offices

GermGuradian AC4825 Air PurifierGermGuardian AC4825

Covers 167 sq. ft.

Our final recommendation for a workplace air purifier is one that meets the needs of people who work in a cubicle or a small home office.

There are literally hundreds of air purifiers that can meet the size requirements for those locations, but not all of them have the advanced capabilities of this machine right here.

This air purifier is a great choice because it contains all of the top features we’ve pointed out on this page:

  • True HEPA Filter
  • Activated Carbon Filter
  • Ultraviolet Light

As the name suggests, this air purifier is a pure “germ guardian”. It has everything you need to protect yourself from indoor germs and pollutants that invade office spaces.

And it’s quite cheap too.

See Amazon.com Reviews

Common Questions About Air Purifiers

How Many Air Purifiers Do I Need for an Office?

The number of air purifiers you need depends on how many rooms your office has.

The general rule of thumb is to have one air purifier per room. That’s because air purifiers can’t work through walls.

If your office has a very large open area with lots of cubicles or desks, then you can quite possibly get away with buying just one air purifier. As long as the air purifier you choose can cover the square footage size of the space, then it should be fine for that location.

However, if your office is divided up into individual rooms that have their own doors, then it’s best to put a separate air purifier in each of those areas. Doing this will allow each person in your work environment to have their own personal bubble of clean, fresh air to breathe.

Where Should I Place an Air Purifier in the Office?

The best placement for an air purifier in an office is to get as close to the central point of the room as possible. This will allow the air purifier to draw air in equally from the full volume of space.

You also want to give your air purifier enough clearance around the machine to function well. The general rule of thumb is to allow 24 inches of clearance on all sides and the top of the machine. But, check your owner’s manual since it may recommend a larger or smaller radius for your particular air purifier.

Placing your air purifier in an optimal position is crucial for peak performance.

Do Air Purifiers Remove Office Dust?

Yes, air purifiers do remove office dust if they contain a True HEPA filter. A True HEPA filter is the only kind of air filter that can trap microscopic dust particles. An Activated Carbon filter can trap some large dust particles but they’re not made for that type of work.

Will an Air Purifier Reduce Office Odors?

Yes, an air purifier will reduce office odors if it has an Activated Carbon filter. An Activated Carbon filter is the only type of air filter that can reduce airborne odors. Activated Carbon filters are made of a special type of material that adsorbs gases and chemical vapors. Other types of filters, like HEPA filters, cannot trap airborne vapors and therefore those molecules just float right through them.

Will an Air Purifier Kill Bacteria and Viruses?

Yes, an air purifier will kill bacteria and viruses if it has an Ultraviolet light. An Ultraviolet light (or UV-C light) emits a beam of radiation that destroys the DNA structure of microbes and pathogens. This radiation is completely safe for humans but kills bacteria and viruses. If you want to have sterile air that’s less contaminated with particles that can make you sick, then a UV-C light is a must-have feature on your air purifier.

Do Air Purifiers Harm Office Plants?

No, air purifiers do not harm office plants. In fact, air purifiers and plants can work well together to create the healthiest air possible in your workplace. There’s nothing an air purifier does that can harm your plants and vice versa. So, feel free to add as many plants as you want to the office while running an air purifier in the same location.

Top Air Pollution Sources in Office Buildings

According to the U.S. Environmental Protection Agency (EPA), there are five sources for air pollution in office buildings:

  • Furnishings
  • Occupant activities
  • Housekeeping practices
  • Pesticide applications
  • Microbial contamination

The EPA also states that a building’s ventilation system design, operation, and maintenance further contribute to the levels of indoor contaminants found in the workplace.

Unfortunately, most people don’t have any control over the indoor environment at work, unless they work in a home office, As a result, employees report a large number of health problems that are found to be associated with the air quality inside office buildings.

The most common symptoms that building occupants experience include:

  • Dry or burning mucous membranes in the nose, eyes, and throat
  • Sneezing
  • Stuffy or runny nose
  • Fatigue (or lethargy)
  • Headache
  • Dizziness
  • Nausea
  • Irritability
  • Forgetfulness

While not all illnesses are a result of poor air quality inside buildings, the World Health Organization experts have stated that up to 30% of new or remodeled buildings around the world may be the subject of excessive complaints related to indoor air quality. The most common reason, of course, is the presence of Volatile Organic Compounds or VOCs as we mentioned previously in this air purifier guide. And the common name for this condition is “Sick Building Syndrome.”

The EPA gives a detailed list of the potential root causes of Sick Building Syndrom and the ill effects it has on workers:

  • Asbestos from insulating and fire-retardant building supplies
  • Formaldehyde from pressed wood products
  • Other organics from building materials
  • Carpet, and other office furnishings
  • Cleaning materials and activities
  • Restroom air fresheners
  • Paints, adhesives, copying machines, and photography and print shops
  • Biological contaminants from dirty ventilation systems or water-damaged walls, ceilings and carpets
  • Pesticides from pest management practices
  • Environmental tobacco smoke

As you can see, an air purifier is a great device to have at your workplace because it can eliminate a large number of airborne contaminants that may be making you feel sick or affect your mood and performance.

The Best Office Air Purifier is the One That Suits Your Needs

Although our goal with this guide was to provide you with reviews on the best air purifier for office spaces, the truth is that the top machine is one that suits your individual needs.

While we hope that you found the best office air purifier for your work environment on this list, there are literally hundreds of other options out there for you to choose from.

And fortunately, you now have the knowledge on how to pick the best air purifier for a workplace because the information explained here taught you how to find and compare the most important features.

We hope you enjoyed this guide and find the perfect air purifier for your office needs. Every one of the models recommended on this page can be hard to beat.