One of the main sources of contamination in every business and office are Volatile Organic Compounds (VOCs). They are chemical substances that turn into vapors or gases at room temperature, making them very harmful to your health. Carpets, synthetic fibers in furniture, printer inks, some computer components, cleaning products, etc., are all made with one or two of these compounds, such as benzene or acetone, which degrade over time. There are also the concentrations of carbon dioxide released by the breathing of your workers, the nitrogen dioxide that results from broken appliances, such as the microwaves that you can find in the kitchenets found in most offices. A good air purifier with a HEPA filter will keep your office clean. It is a guarantee of healthy and fresh air.