Disclosed herein is a washing machine with drying function. A number of light-emitting sources have intensities that are varied in accordance with an image. The polymers are formulated with appropriate additives which are reactive with the hazardous substances, and are used to prepare sensors. Detents provided on the upper and lower extensions are received beneath respective portions of the cleat and the base member in order to snap-fittingly interconnect the upper and lower extensions. The system may also be used in conjunction with adhesives or other compositions that must be filtered, heated and provided to a spray applicator at a metered flow rate. The invention includes a system for managing multiple credentials within the same authentication system and across federated authentication systems in such a manner that signing in with one credential allows access to content, information or services that may be associated with another credential.