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Air Purifier for Office Use: What Size Do I Need?

Posted by David Allen on Nov 23, 2017

air-purifier-for-office-with-remote.jpgWhen it comes to air purifiers for office use, size matters. You can't just buy any old model and assume it will work for your space. You'll need to figure out what square footage your air purifier needs to service and select a unit that can deliver. You may also want to consider other of the unit's processing abilities, along with other options. 

Square footage

Air purifiers can cover a range of indoor areas, depending on the model. First calculate the square footage of the space. To figure out the square footage of the indoor area that is shaped like a rectangle or square, use the following formula:

Length x Width = Area

If your space is made up of different connecting rectangles and squares, you can use this formula for each shape and then add them together. For spaces with more complex layouts, you may have to use a more complicated formula, like the ones detailed on Calculator Soup. Any professional contractor or air purifier dealer can likely help you make an estimate for your space.

Once you figure out the square footage of your space, you can cross-reference the information with models on the market. Most product labels will include a manufacturer's recommended room size to help guide your selection of a commercial air cleaner. Some of the ranges you may find are:

  • Immediate area
  • 100 - 250 sq. ft.
  • 250 - 500 sq. ft.
  • 500 - 750 sq. ft.
  • 750 - 1,000 sq. ft.
  • 1,000 - 1,500 sq. ft.
  • 1,500 - 2,000 sq. ft.
  • 2,000 sq. ft. or more

ACH and CFM: Acronyms to consider

A commercial air purifier may have some curious acronyms on the product label or in the online product description. These may help you determine what office air purifier will work best for you.

ACH: This refers to "air change per hour." This figure indicates how many times the entire volume of air in a room will be filtered per hour. If you need an air purifier for office use that bast protects those with allergies or asthma, you may want to consider a unit that clears the air four times per hour or more.

CHM: This number indicates the cubic feet of air that a unit will process per minute. This figure can also help you determine how often the office air purifier you are considering will completely filter the air in a room.

Use this information in addition to the square footage indicator on the label.

Other air purifier features

Once you have found the industrial air purifier models that meet your size needs, there are numerous other features available. Those include:

  • Different filtration methods
  • Color options
  • Remote control
  • Air quality monitor
  • Digital interface
  • Fragrance dispenser
  • Multiple fan settings
  • Mounting hardware
  • Casters or carrying handle

You'll need to figure out whether you need a commerical HEPA air purifier or other specific features before you buy. Don't rely on commercial air purifier reviews alone. 

Air purifiers for office use can cost anywhere from $200 to $1,700, depending on the size of the area you need to cover and features you select. Some commercial air purifiers may have parts or filters that need to be regularly replaced to keep a unit functioning at optimal levels.

For a free consultation on assessing your commercial air purifier needs, contact Pure n Natural.

Topics: Air Cleaners, Natural Air Cleaners

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