Studies of the health crisis caused by COVID-19 indicated that poor air quality increased risks of infection; households are advised to improve the IAQ of their homes. 
The focus in Indoor Air Quality or IAQ includes using air filters that can remove dangerous volatile organic compounds used as components in some of the paints, adhesives and refrigerants present in homes.
Children and the elderly citizens are often the most affected by poor indoor air quality, of which the most common disorder is asthma.
What Exactly is Indoor Air Quality or IAQ
IAQ has been established as breathable indoor air devoid of life-threatening pollutants to ensure human residents of the household have reduced risks of developing respiratory and other chronic diseases. As work from home (WFH) is now a norm as a business strategy, it’s important for WFH employees to monitor the IAQ indoors to ensure they are working in an environment that promotes a higher quality of life. Doing so minimizes the risks of contracting serious respiratory illnesses and other chronic disorders, which could affect productivity
Some of the most common examples of VOCs are formaldehyde, benzene, ethylene and methylene chloride, just to mention a few. Yet the most important focus of maintaining and monitoring indoor air quality is the carbon dioxide (CO2) in the air we breathe. 
Scientists found evidence that CO2 has had significant effects on impairing cognitive capabilities, which can affect not only productivity, but the overall physical and mental well-being of residents. Yet despite such effects, CO2 is not recognized as a pollutant because of its significant contributions to nature, particularly vegetations and plant life
What Does IAQ Monitoring Entail
IAQ monitoring refers to the process of continuously gathering data on what the indoor air contains, such as particulate matters, gases and chemicals. The purpose of the data collection is to immediately identify problem areas, track and identify trends that cause repetitive occurrences so that preventive measures can be implemented to mitigate negative effects at soonest time possible.
Installing an air doctor air purifier is one way of mitigating the negative effects of the pollutants, chemicals and VOCs monitored to be present in the indoor air breathed in daily by residents even as they sleep,
Air Doctor 3000 asserts its distinction from other standard air purifiers through its Ultra High Efficiency Particulate Air (HEPA) filter called UltraHEPA™. According to the manufacturer, the Air Doctor air purifier is 100 times more efficient than standard filters because it can capture the most life-threatening particulate matter even in its minute size of 003 microns.