I just use a "plywood" shelter lined with acoustic foam. Just run a pipe to the air intake and exhaust tube. For the exhaust muffler, there is a company that makes "discs" that quite the sound. I've used them before and they work. You can add or subtract the number of "discs" to suit your application.Rusty- Did you find a way to quiet the mep-531 ?? They seem so loud for camping use...I love mine but it is loud.