Environment
When the relative humidity of office air is too low, costly materials such as wood become damaged and crack. When it is too high the condensation of windows and exterior walls can result in costly structural damage. Plants moderate and stabilise humidity and can have a cooling effect in a hot indoor environment. They create a humidity level that is equivalent to the optimum human comfort range of 30-60%. Broadleaved plants can also reduce noise and echo in large open plan spaces.
Plants look attractive and can soften the hard, architectural lines of modern building and bring a little nature indoors. The cold, impersonal reality of concrete and steel is softened by the cool, peaceful effect of live foliage. Plants have psychological benefits, instilling a sense of wellbeing and reducing staff absence. They create a green welcome and influence behaviour and their presence has been shown to increase productivity.
