To improve a smoking-area separation effect, by allowing sufficient removal of not only particulate material but also gaseous component in tobacco smoke by using an existing ventilation fan installed in a room.
A collector 205 for performing a cleaning treatment with an electrostatic dust collection system and a fan 206 are built in a table body 201. A duct 207 is disposed in a side of the table body 201, and a clearance 217 is formed between an end opening of the duct 207 and the ventilation fan 1 installed in the indoor ceiling. When the fan 206 is driven, air in a space 213 is sucked from a suction port 204 in a top plate 202 and the particulate material in the tobacco smoke is collected by the collector 205. Part of the cleaned air is made to flow to a duct section 209 in a ceiling section 208 by an adjusting plate 310 and is jetted from a jet port 211, and the remaining part is guided to the ventilation fan 1.
SUGAWA NAOKI
KUNIYASU OSAMU
