Tom, one way that those needing oxygen to live deal with noise is that they put the concentrator in another room. Or just further away.behind something. You don't need special hose (the clear plastic hose you can buy at Home Depot works fine) to run it from where the concentrator is located to your bench. You might want some kind of manifold on your bench to accept the clear hose.and that also your welding hose can attach to. Some concentrators have plastic welding B thread to barb accessories. Western Enterprises makes brass ones commonly available with different barb sizes. Those plastic or brass fittings have a B thread on one end and a barb fitting on the other. These fittings make running long lengths of clear hose possible. Of course there is some loss of pressure the longer the hose. Some concentrators have barb instead of a type B fitting.

Those of us that have been doing it a long time all started out using oxyacetylene. If you don't mind loading the tank into your car and paying $20 for each exchange, bottled O2 works perfectly. Each time you have to take the regulator off the empty tank and put it back on the full tank. And just as a reminder, acetylene is a LOT more expensive. Your local supply store may allow you to transport your own acetylene but some places are a lot more strict and they will only deliver to a commercial address. Acetylene bottles should always be kept upright.