CO2 doesn't have the same romance with pollutants from non-human resources that it does with human emissions. Off-gassing from constructing materials, furnishings, cooking, cleaning and electrical solutions could be unbiased of occupancy [30] e.g., Offermann observed very low CO2 concentrations along with dangerously large levels of formaldehydes [31]. Even so https://cibse-cpd66778.blogsvirals.com/28094609/examine-this-report-on-lift-shaft-ventilation