At the present time, many people are unaware of the health significance of indoor contaminants that they cannot smell or feel through irritation of their respiratory tract.
When people became aware that transmission of SARS-CoV-2 was primarily through the air, reducing airborne exposure in buildings immediately became a high priority.
In the past several years, there has been much discussion on the influence of indoor environments on the spread of diseases caused by viruses and bacteria.
The adage that increasing outdoor air ventilation will improve IAQ is not always the case. For example, how do you manage ventilation to support occupant health if outdoor air is polluted by an upwind wildfire or an accident that spilled airborne toxins?
Are there lessons from Fibonacci ratios that could be used by engineers to improve fans blades for air movement, size HVAC ducts, or design economical mechanical systems?
Barely three years after a pandemic disrupted life around the globe, reports of avian influenza infections moving from birds into mammals are surfacing.