There are provided: an air blower 25 that introduces indoor air from an air inlet 13 and delivers the air through air outlets 29 and 30; and a dust collecting filter 55 that collects dust contained in air. The system allows ringing and answering of inbound calls, dialing of outbound numbers, and signaling of handset status, as well as traditional telephony capabilities such as memory dialing, redial and radio channel controls. The decorative vamp system includes the shoe with a fixed vamp, a removable vamp insert, a tongue flap and a receiving lip. The processor preferably belongs to an apparatus that further comprises a user interface, through which the data is received. The extension values resulting from the iteration before the cost-extended system becomes infeasible are then used at run-time when a particular task encounters an overrun condition. The device is operated by the activation of a presence sensor, either a beverage cup or a clean hand, which causes the incremental dispensing of a single lid.