An access platform comprising a series of stackable polyurethane foam block assemblies that when properly secured to each other creates a set of steps and handholds similar to a ladder. The windbreak device is provided with a rechargeable battery which provides electrical energy for operating the electric drive unit. Thus, the NCDN customer has access to and can make available to participating content providers one or more of the content delivery services available from the global CDN without having to provide the large capital investment, R&D expense and labor necessary to successfully deploy and operate the network itself. The further inlet point can be located before or after the all the titanium tetrachloride has been introduced into the reactor.