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They can achieve this in two ways.                   

 

First, transpiration of water through the plant, from root to leaf and out into the atmosphere. Transpiration is governed by species, light levels, humidity and temperature. The more active the plant is, the greater the transpiration rate. Conversely, plants that are under stress, e.g. under attack by pests; or too dry, often reduce transpiration by closing the pores (stomata) in their leaves. The greatest benefit is therefore derived from healthy, well-maintained plant displays.

 

The second mechanism is evaporation from the soil, which has a localized cooling and humidifying effect. Dry air tends to be a bigger problem in the winter months, when windows are shut and heating turned up, and in offices with lots of computers and other electrical equipment. Air conditioning also dries the air.

 

Although plants won’t completely solve a dry air problem they can make a useful contribution, especially if sited near to where people work. However, the amount of moisture that enters the atmosphere from a tropical plant display is limited by the amount of water added to the display to begin with. If a plant only receives 1 liter of water a week, then the most that can be transpired or evaporated will be 1 litre a week.

 

So if your office feels dry and horrible call for a free site survey now on 08452 606 505.