Have you ever wondered why you feel tired and uninspired during the day - at home, at the office or at school? It could well be down to an inadequate indoor environment. Indoor climate plays a far greater role in our health and well-being than most of us realise. In fact, poor indoor air quality and lack of daylight can decrease work productivity significantly. Studies have shown that they can affect work performance by up to 10% and increase rates of sickness-related absence.