Air quality testers have an important part to play in ensuring that a building is a safe environment for those living or working within it. By measuring key factors such as temperature, purity, ventilation, and humidity, using air quality testers can help to avoid the development of “sick building syndrome”, or SBS, in which those who work or live within the building can become affected by nasal and lung irritation, skin complaints, and general discomfort or compromised health.