Abstract: An improved wheelchair and a method of security screening a wheelchair are disclosed. The wheelchair is constructed of plastic and includes an antimicrobial agent. The wheelchair also includes a plurality of safety features. In a method, the wheelchair is tested for compliance with safety and security standards. If compliant, the wheelchair is certified by locating certification information on the wheelchair and the wheelchair is provided for use. Before each use, the wheelchair is validated by confirming the existence of the certification information. The wheelchair is then used to transport a user to and through a security checkpoint while the user remains seated in the wheelchair, including as the wheelchair passes through checkpoint screening.

Abstract: A network of computers in which multiple remote computers communicate between each other. A first computer is able to connect to a second computer and access a virtual building having a plurality of virtual items within said virtual building. Each of the virtual items has a specific location within said virtual building. The user is able to “browse” through the virtual building “shopping” for items within the virtual building until a purchase is wanted. The user is also able to see and converse with other users “within” the virtual building.