A word game for being played among one or more participants includes a plurality of two letter word bits, each having a fixed letter combination, wherein the one or more participants attempt to create words of at least four letters by combining the word bits. Areas of the housing which are configured to receive contact elements in a variety of positions are configured such that the contact elements can be disposed and oriented in a plurality of ways when disposed in each position. The first and second flow channels extend from an opening of the outlet to the pressure-generating element. This allows the user to select a normal upright sitting exercise mode or a recumbent sitting exercise mode. The switch can for example be a micro-device with a bimetal effect thermal actuator. Each of the coupling members includes a first fastening element running through the through hole from the rear end thereof and a second fastening element running though the front end of the through hole to engage with the first fastening element so that the coupling members are fastened securely to maintain the fan structure in an integrated manner to perform normal operation.