The invention pertains to a process of removing phosphorous-containing impurities and preferably also dienes, from an olefin stream using a sorbent selected from the group consisting of an acidic ion exchange resin, an acidic zeolite, an acidic alumina, a neutral alumina, and an activated carbon. The diverter has a color change carbon dioxide indicator strip fixed to the inside surface of a transparent deflector plate. A voltage regulator circuit configured to regulate dark photodiode voltage at an anode of the dark photodiode based on the reference voltage. The second data-transmitting section changes the order in which to transmit the auxiliary data items inserted in a program, in accordance with the new data assembled by the control section. Based on the answers to the initial series of questions, the setup wizard may generate still additional questions or begin execution of each of the configuration modules as a function of these answers. The spout is shaped and sized to be received inside a child’s mouth.