CO2 does not have the same romance with pollutants from non-human resources that it does with human emissions. Off-gassing from developing products, furnishings, cooking, cleaning and electrical products could possibly be independent of occupancy [30] e.g., Offermann found very low CO2 degrees together with dangerously significant amounts of formaldehydes [31]. https://lanemcrfs.thekatyblog.com/26935174/5-essential-elements-for-ventilation-systems