Home plants in the news Plants--Nature's Air Cleaners

See Us Here


WebPage QR Code

Plants--Nature's Air Cleaners Print Email

NOTE: If the video above does not play, you may need to install Adobe Flash Player. You can download the latest version from here.

The Air We Breathe

No one likes to work in an unpleasant atmosphere. One of the most important aspects of keeping a company running smoothly is a happy employee. If your employees are not happy in their working environment, this can lead to poor performance, a decrease in productivity and an increase in days off sick. One of the reasons for this can be Sick Building Syndrome.

Sick Building Syndrome
Toxins in an office environment cause Sick Building Syndrome. New or recently renovated buildings have a higher risk due to the large amounts of chemicals produced from paint, carpets and furniture - these can be detected for up to a year afterwords. New “energy efficient” buildings are also a risk, as these recirculate fumes.

All offices create toxins by using the very products we need to keep our businesses running smoothly - copiers, printers, PCs. All these products give off some form of toxins and pollutants. Workers are not even safe from the products used to clean offices - these too are a cause for concern. All these pollutants start to play havoc on immune systems, causing sore heads, runny noses, sneezing and breathing problems which can all lead to poorer performance in the workplace and more time off sick.

How can we prevent this? Unfortunately, until manufacturers can create entirely environmentally-friendly materials, this cannot be avoided. However, it is possible to combat the effects these toxins have in the environment by using plants. As simple as this sounds, plants have been proven to help “clean the air” of toxins. Dr. Wolverton, a researcher at NASA, has carried out intensive research into the subject involving the three major indoor pollutants:

  1. Trichloroethylene
  2. Benzene
  3. Formaldehyde

Wolverton found that most indoor plants remove at least one type of toxin, although most of them are not able to absorb high levels of all three. The toxins that are absorbed do not damage the plants. The toxins are absorbed into the root zone of the plants where they are turned into nutrients. By increasing the soil volume, this in turn improves the plant’s rate of absorption.

The findings also discovered that spider plants were the most productive at improving air quality in rooms. Ivy, dragon trees (dracena marginatas) and rubber plants were also effective. The research findings recommended the following:

  1. At least one plant per 9.29 square metres (1 plant for every 100 square feet)
  2. Combine plants to combat a range of toxins
  3. Select leafy plants - the more surface area a plant has, the more air it can clean
  4. Each worker should have a plant on his or her desk, within the “personal breathing space” - an area of six to eight cubic feet where most of the working day is spent.

Plants have also been shown to relieve stress. Research carried out by Surrey University environmental scientist Helen Russell showed that plants helped to create a more relaxed atmosphere and eventually led to a 60 percent drop in absenteeism. In other tests, carried out by Professor Virginia Lohr of Washington State University, those people with a plant on their desk showed 12 percent faster reactions and their stress levels were reduced dramatically.

Where to start?
Before you start looking at plants and suppliers, there are a number of points to consider:

  • What is your budget?
  • Do you want to buy the plants yourself or outsource this task?
  • Who will maintain the plants (i.e. will it be done internally or by a contractor?)
  • What sort of plants do you want?
  • Where will plants be located?

Once you have considered these points, you may decide you have enough information to obtain and care for the plants yourself. Alternatively, the project can be outsourced to an interior landscape company. Interior landscaping companies will carry out a survey of your premises and discuss what benefits you wish to gain from having plants in the office. As well as reducing the toxins in the air, the proper placement of plants can lower heating and cooling costs and reduce noise in open plan areas.

It is often possible to rent plants from a landscaping company instead of buying them. The benefits are that the plants can be changed either seasonally or annually, and the landscaping company will maintain the plants. Most will offer a maintenance/replacement service, with no additional cost for replacement plants. However, it is worth researching a few companies and comparing what services are available and what costs are involved.

Many companies also offer artificial landscaping services. This will not give the health benefits, although it will brighten up the office and make the surroundings more attractive for both visitors and employees.


The following table shows which plants will clean each of the three chemicals from the air. 

 Pollutant Source Plant Solution
 Formaldehyde Foam insulation
Particle board
Household cleaners
Water repellents
Paper goods
Spider plant
Golden pathos
Bamboo palm
Corn plant
 Benzene Tobacco smoke
Synthetic fibers
English ivy
Jenny Craig
Gerbera daisy
Peace lily
 Trichloroethylene Dry cleaning
Gerbera daisy
Peace lily
Source: MJ Gilhooley, Plants at Work  www.plantsatwork.org


A two-year study in an office, conducted by Professor Tove Fjeld of the Agricultural University in Oslo, found the following reductions in ailments after the introduction of plants:

Sore/dry throats
Dry facial skin

Fjeld also carried out studies in a school and an x-ray department with similar results, concluding that plants reduce minor ailments associated with Sick Building Syndrome.


Select indoor plants that require lots of watering, says Dr. Ronald Wood. These are the best for improving humidity levels and tend to have an active metabolism that is helpful in breaking down pollutants. Also, use plant varieties with a high leaf area per size of pot. The bigger the surface area, the more it can absorb pollutants and chemicals.

Source: http://www.plants-for-people.org
For more information, please contact This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Source: www.alca.org courtesy of PlantsAtWork.org