Volatile organic compounds are gasses emitted from solid or liquid materials. They are defined by a high vapour pressure under standard room temperature conditions. They are detected at higher levels indoors than they are outdoors. VOCs are emitted by a number of products found in business of residential settings such as paint, cleaning supplies furnishings and solvent based materials. Examples include formaldehyde, acetone and styrene. VOCs are a pollutant of indoor air quality.
A non-cellular, microscopic infectious organism that consists of a core of DNA or RNA surrounded by a protein coat.
A mycotoxin produced by Aspergillus and Penicillium species. It can induce tremor and alter the properties of mucosal surfaces.
Ultraviolet radiation band C (UV-C) refers to short wave UV light in the C band ranging from 200-280 nanometres. This is associated with its microbiocidal properties. UV-C light is used in the remediation of indoor air quality (IAQ) and is used heating, ventilation and air conditioning (HVAC) systems.
Ultrafine Particles (UFPs) are microscopic particles suspended in the air that are considered to be a specific type of air pollution. These particles can be hazardous to human health. Fine particles are often identified by Particle Matter (PM) ratings. The size of these particles is in the order of several nanometers to several micrometers. For example, the PM10 rating represents particles that have a diameter smaller than 10 micrometers. Also referred to as: Ultra-Fine particles, Ultrafine particles and Ultra fine particles.