It isn't really done on a forum. It is usually member of a particular industry.
This one would be HVAC.
If two people are in a room, and relative humidity is constant... depending on activity and such... their skin surface temperature will be slightly different and they will feel hot or cold.
With air exchange, the same thing.
A certain concentration of a pollutant has differing effects on each of us.
So some may need more exchanges per hour, others less.
And those could vary depending on what the pollutant is.
The industry tries to debate the perfect... but more likely strike a balance for the majority with the understanding that individuals, even in the same household, will differ.
''ASHRAE (formerly called the American Society of Heating, Refrigerating and Air-Conditioning Engineers) recommends (in its Standard 62.2-2016, "Ventilation and Acceptable Indoor Air Quality in Residential Buildings") that homes receive 0.35 air changes per hour but not less than 15 cubic feet of air per minute (cfm) per person. as the minimum ventilation rates in residential buildings in order to provide IAQ that is acceptable to human occupants and that minimizes adverse health effects. ASHRAE also suggests intermittent exhaust capacities for kitchens and bathroom exhaust to help control pollutant levels and moisture in those rooms. ASHRAE also notes that "dwellings with tight enclosures may require supplemental ventilation supply for fuel-burning appliances, including fireplaces and mechanically exhausted appliances.''
See how the standard leaves room for more than the standard...
So if you tighten down to the standard, you may be too tight.
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