Furniture and building materials can emit formaldehyde and various kinds of Volatile Organic Compounds (VOCs) that have an impact on indoor air quality as well as having an adverse effect on human health. Common health effects include eye, nose and throat irritation, headaches, abnormal tiredness, damage to liver, kidney and central nervous system, etc. On account of such health risks, many countries have established mandatory or voluntary rating systems to control the emission of formaldehyde, VOCs and other hazardous substances in construction and furnishing materials. STC offers formaldehyde and VOC testing on EU regulations.