Most people simply sip colloidal silver (CS) or use it externally, but I'm often asked if is safe to inhale. The answer is a loud yes. If you have a nebuliser then use it regularly.
But, as an alternative to a nebuliser, here's the simplest and most convenient machine I have found for inhaling colloidal silver. It's an ultrasonic humidifier. A humidifier like this is much easier to use than a conventional nebuliser. It's virtually silent and there are no fiddly parts to unpack, assemble and clean. Because its so easy to use, you will use it much more often than a machine you have to unpack every time you want to take a few breathes. Just fill it with CS and leave it set up permanently at a convenient height on a bench or shelf. To use it as a nebuliser you just put your face near the spout and take nice deep breathes through your nose and mouth for a minute or two. Or you can let it run continuously to humidify a whole room. Its so quiet you can even sleep next to it.