PFA a white paper on Indoor Air Quality by Terrapin Green.
"Despite attempts to improve indoor air with better filters and airtight building envelopes, more than two-thirds of indoor and outdoor air quality studies find higher air pollutant concentration indoors than outdoors.
Although air pollutants may not be consciously perceived by occupants, their detriment to health and wellbeing is well documented. Comparative risk assessment studies by the Environmental Protection Agency (EPA) have consistently ranked poor indoor air quality among the top five environmental dangers to public health. The most commonly reported symptoms associated with poor indoor air quality include headaches, fatigue, trouble concentrating, and irritation of the eyes, nose, throat, and lungs. Studies have also linked long-term air pollutant exposure to impaired memory, degraded cognitive performance, disrupted sleep, increased rates of asthma, heart disease, and certain cancers."
Warm Regards,
Hussain