Ultrafine particles are smaller than 0.1 microns. By sheer number, about 90% of all airborne particles are this size. The primary source of ultrafine particles is combustion from motor vehicles, refineries, industrial plants and even cooking. Viruses are also ultrafine particles. The small size of ultrafine particles enables them to be easily inhaled, deposited into the lungs and absorbed into the blood. They have been linked to heart attacks, strokes, asthma and even cancer.

Poor indoor air quality can impact your productivity

The time most people spend in the office is second only to the time they spend at home. It is thus no surprise that the air people breathe at work has an important impact on their overall health and productivity.

Sources of office air pollution

The air quality in office buildings is often compromised by a combination of indoor and outdoor pollution sources. Outdoor pollution sources can include busy streets, bus terminals, adjacent car parks, railway stations, airports, manufacturing, industry, agriculture and more. Badly maintained HVAC systems, office and building materials, photocopiers and laser printers can be an indoor source of particulate and gaseous pollutants.