CO2 does not have precisely the same connection with pollutants from non-human resources that it does with human emissions. Off-gassing from building supplies, furnishings, cooking, cleansing and electrical items could be independent of occupancy [30] e.g., Offermann discovered reduced CO2 degrees along with dangerously large levels of formaldehydes [31]. On https://cibse-cpd89011.59bloggers.com/28686623/examine-this-report-on-lift-shaft-ventilation