IAQ is the international metric for measuring Indoor Air Quality.

Pathogenic microbes are discharged from an infected person via talking, coughing, sneezing, laughing, and close personal contact or aerosolization of the microbe. The discharged microbes remain suspended in the air on dust particles, respiratory water, and water droplets.

VOCs are Volatile Organic Compounds which are emanated as gasses from liquids or solids. VOCs are emitted by a wide range of products and may have short-term or long-term health effects. The concentration of VOCs is higher indoors than outdoors. The main sources of VOCs are paints, aerosol sprays, disinfectants, cleaning agents, and pesticides.

High concentrations of carbon dioxide and exposure is dangerous for humans as it may lead to severe illness or result in death.

Carbon monoxide is an odorless gas that is produced from the combustion of fuels. the gas reduces the levels of oxygen in the body. Carbon monoxide exposure can cause chest pain, fatigue, impaired vision and high exposure can result in death. CO can also be found near boilers, generators and furnaces.

Radon comes from the breakdown of naturally occurring radioactive elements in soil and rocks. Radon is a gas that you can neither see nor smell. It enters homes and buildings through cracks and gaps.

No, the Guardian Air device does not monitor viruses, it monitors the quality of indoor air metering moisture, carbon dioxide, VOC which are indicators to ventilation problems which will result in a high level of airborne pathogens and poor indoor air quality.

The Green Flag Association is a multidiciplinary body comprising of scientists, academics, and business representatives working collaboratively to provide practical solutions that could reduce the transmission of airborne pathogens in enclosed spaces.

Yes, the main contributors are traffic emissions and smoke from fires and industry.

Lead, dust mites, mold, radon, pests, carbon monoxide, pet dander, and secondhand smoke.

High temperature and humidity can create mold.

Inhaling or touching mold spores may cause allergic reactions in sensitive individuals. Allergic responses include hay fever-type symptoms like sneezing, runny nose, red eyes and skin rash.