The Research of Computational Formula of Indoor Formaldehyde Instantaneous Concentration Influenced by Air Exchange Rate

The formaldehyde instantaneous concentration formula at a specific air exchange rate before the environment cabin is in the stable state is theoretically obtained, based on the basic formula of the formaldehyde concentration in the environment test cabin simulated as the indoor environment. The formaldehyde instantaneous concentration formula has been confirmed in the experiment about the relationship between the release co-efficient of the plate formaldehyde and the air exchange rate with such results as the computation precision of the formula is more accurate and the formula-computed result is consistent with the experimental result. At the same time, the formula has been revised to avoid the actual values in the experiment lag behind those computed by the formula in order to further increase the computation precision of the formula.