Best Air Purifier for Office Desk

GermGuardian AC4100

Osimo A2

Levoit LV-H126

The first thing to look for in a HEPA filter in the design. This will trap most of the contaminates in particles larger than three microns, which means that there won’t be many particles floating around when you turn it on. A carbon filter can also help with odors and chemicals in the air, and activated charcoal is especially useful for removing formaldehyde, a chemical that is commonly found in many building materials.

If you spend a lot of time at your desk, it’s important to make sure the best desktop air purifier you choose has a high CADR rating or Clean Air Delivery Rate. This measures how much air it can filter every minute. LED displays with speed settings are also great if you want to control the amount of air that is filtered at any given time, and you can adjust it for levels that are suitable for different times of the day or different activities around your desk.

The good news is that most people don’t need an outdoor-sized purifier to get the job done.

If you have a desk that sits in an open office, it’s not necessary to buy something that can handle more square footage than your desk does. It will probably take care of itself even in the most crowded workspaces. If you have a small cubicle or personal office though, you’ll want to make sure that it does the job effectively.

A good desktop air purifier will handle spaces up to about 100 square feet, so if your office is larger than this, you may want to look into something bigger or moving the purifier around the room as needed. Also, try looking for options that can be used with multiple fan speeds to make sure that you are getting the best performance possible.

Best 5 Desktop Air Purifiers for Office

Levoit LV-H126

Levoit LV-H126

The Levoit LV-H126 space saver will clean any smell quickly. With its three airspeeds settings, it can be used either as a weekend refresher or on the lowest setting for an everyday single room cleaner. It also features two cleaning modes – work/sleep time vs awake time. The pre-filter and mesh scaffonage combined with the charcoal foam filter ensures that this product has an incredibly long life because of a dual filtration mechanism to best protect your health from chemicals and other pollutants. All in all, this is a quality small machine that offers great value for budget-conscious shoppers.

  • 3-Stage Filtration
  • Ozone Free
  • 3 Fan Speeds
  • Quiet Operation
  • Compact Size
  • Filter Reminder Reel
Osimo A2

Osimo A2

The Osimo A2 uses the latest 3-stage HEPA filter technology to remove 99.9% of air pollutants, plus activated carbon for a fresh scent and safe use. 

It also has three different speeds with Sleep Mode, Normal Mode, and Strong Purification Modes-perfect for whichever type of cleaning is needed in your home at any one time. 

For a quick clean or more thorough detoxification—the Osimo A2 delivers it all with the high performance you can count on from this modern essential!

  •  3 Stages Filtration
  • 3 Fan Speeds
  • Portable and Sleek Design
  • Quality Service
Molekule Air Mini

Molekule Air Mini+ Air Purifier

Molekule Air Mini is the world’s most effective air purifier. This innovative technology destroys viruses, bacteria, allergens, and mold without chemicals or filters. Molekule is for small rooms up to 250 sq ft–ideal if you live in a studio apartment, kids’ bedroom & home office. With 5 fan speeds to choose from, control your purification needs for whisper-quiet use up to powerful boost mode when you can’t escape outside (plus an app that lets you schedule automatic boosts at the touch of a button).

We designed Molekule using patented PECO nano technology which gives it 3 times more VOC capture power than any other product in its class–that includes everyone! And with five fan settings, you can customize your purification needs to have the quietest experience possible, or boost it when you need powerful clean air.

  • Portable 
  • No ozone
  • 5 fan speeds
  • Smart & Connected 
  • PECO-Filters 
GermGuardian AC4100

GermGuardian AC4100

The GermGuardian AC4100 is a 4-in-1 desktop air purifier that reduces up to 99.97% of harmful germs and allergens from the air. Perfect for anyone looking to clean their space with style, this desktop design fits well anywhere and is only 11 inches! Comes with an electric outlet and convenient power cord so you can plug it in anywhere! The germ guardian has four settings: sleep mode, normal mode, turbo mode, and germicidal UV illumination setting for added protection against viruses such as influenza or staphylococcus. For those worried about the size of the purifier as desktop décor try providing it as a dorm decoration as we do at Franklin Cleaner Supply Inc. Customers love it for their dorm rooms!

  • Ultra-quiet Design
  • UV-C light 
  • Reduces Odors
  • Easy-to-use
  • Traps Allergens
IQAir Atem Desk

IQAir Atem Desk

From the company rated number one in personal air purifiers, we bring to you the IQAir Atem Desk. The exclusive HyperHEPA filters set our products apart from anything else on the market and offer a clean space equivalent to a room size 10x larger than what it is. These “smallest particles?” Well? We include everything down to 0.003 microns that no other filter can reach. Safely remove xeno-biochemicals that normally linger in your office or home with this piece of equipment and step into clearer air every day!

  • Open space offices
  • HyperHEPA Filtration
  • Portable
  • Ideal for travel

Desktop Air Purifiers: A Buyer’s Guide

Now that you’ve seen five of the best desk-sized models on the market, how do you choose which one is right for your needs? Here are some points to consider before making a purchase:

Whole House Purification vs. Personal Use – When considering buying an air purifier, keep in mind if it will be used throughout the home, or just in a specific area like the desk. If you only need to purify one room, such as the office, then a small desktop model would be enough to take care of that space. If you need air purification throughout the home or office, then a large unit that covers your space would be necessary.

Types of Filters – Desktop models usually use HEPA filters, though some may also use ionizers. Ionizers are less common in desk-sized models because they can be quite noisy when on high fan speeds, but they can also be effective in removing odors and contaminants from the air. If you need a model that cleans out chemical vapors, look for one with an activated carbon filter.

Other Features – Some models come with multiple fan speeds and timers to help control when the purifier is on and for how long. If you’re someone who sleeps lightly they could be a nice feature to have. Other features may include remote controls, pre-mixed fragrances for freshening the air, and nightlights.

Size & Cord Length – Before buying an air purifier make sure you are aware of how large the unit is, especially if you are considering it for your desk. Units with larger filters are normally larger, so they will make your desk look cluttered if they are several inches high. Also check the length of the cord, especially if you want to place it beside your bed or somewhere else in the home rather than right by an outlet.

Types of filters that come with these purifiers include HEPA-type filters, carbon pre-filters, and ionizers. In general, HEPA filters use layers of charcoal to absorb toxins from the air while carbon pre-filters are meant to help trap larger particles such as pet dander before it reaches the HEPA filter. These two types of filtering components work well in a home or office setting, though that is not always the case with ionizers. If you are looking for an air purifier that will help reduce the allergen levels in the room, look for one that comes with a pre-filter intended to trap dust and other particles including allergens. Again, Ionizers may be too noisy to run overnight, so if this is an important feature, look for one with a HEPA-type filter as well as an ionizer.

Key considerations when buying the right air purifier for you:

Purifiers can be expensive, so think carefully about how much you are willing to spend before making a purchase.

Desktop purifiers can work well in areas where space is limited and users need something more lightweight than what they would use at home. This includes small offices or cubicles in a business setting.

Air purifiers can be effective in reducing allergens in the home and office, but they are not always strong enough to cover larger areas or an entire house. For that reason, many people opt to buy a unit for each room rather than one large machine for their whole house.

Noise – Most modern air purifiers for home use are fairly quiet when in operation. The lowest fan speeds may be near silent, while the higher speeds can sound similar to a small tabletop air conditioner. It’s important to note that purifiers with built-in fans will produce more noise than those that simply filter contaminants from the air by creating a negative pressure around the machine.

Tips for Getting the Maximum Value Out of Your Desktop Air Purifier

Buyers should consider which type of filtering technology is best for their needs. HEPA-type filters are the most common, but if you need something to remove smoke, toxins, chemicals, or other airborne particles from your environment then look for an air purifier with an activated charcoal or carbon pre-filter.

Make sure your air purifier has a UL certification to ensure it will work safely in the U.S. If you are unsure whether it meets these standards, check with the manufacturer.

Don’t forget about maintenance! Many units come with HEPA-type filters that need to be replaced periodically (some as often as every three months). Like all home appliances, make sure you keep track of the costs and how long it will take to recoup your expenses when buying an air purifier.


Desktop air purifiers can be a cost-effective choice for small rooms, but don’t expect them to provide the same filtration and purification power of larger machines. If you’re looking for something compact and light that will reduce some allergens in your home office while also making the room smell nice, then a desktop unit may meet your needs.