抄録
The sick building syndrome is a serious and social problem to be solved. We need effective countermeasure products to indoor chemical pollution. The domestic air cleaner is expected as one of the noted technologies or products. We've already determined the removal rates of the domestic air cleaners by the pollutant constant emission test and also indicated that this product at the initial operation periods was effective as a countermeasure against the problem. However, the studies related to the durability of the domestic air cleaners have not been reported. In this study, the durability of the domestic air cleaners was investigated and determined with use of the apparatus exposed to the contaminant. Results showed that Clean Air Delivery Rate(CADR) or ECAR on ethylbenzene at the initial operation was 72.4[m^3/h], however, in the case of exposed one was decreased to 54.2[m^3/h].