Measurement of particle removal performance for a novel design of range hood

A novel range hood (NRH) consisting of a high-efficiency particulate air (HEPA) filter circulation component and exhaust was designed to improve indoor quality. The HEPA with an airflow rate 72 l/s used remove the matter generated by cooking activities return filtered clean room. reject both other pollutants outdoors. Field measurements were carried out in open kitchen two-floor residential house. total occupied zone about 160 m³ living area 64 m 2 (including kitchen) height 2.5 m. Frying bacon that can generate large number particles different sizes simulate daily activities. Four operating conditions NRH studied, i.e. 38 on off, 78 off. concentration PM 0.1 count, mass, 10 mass measured during measurements. part dramatically reduce all By combining component, separately , up 91.9%, 95.7%, 94.6% compared when only running part.