I built a box, drilled a 3" hole on the side of my shop close to center of room about 6', mounted box, added screen, filter, and vent, hooks to keep it above me, setup CPAP values, and now have fresh air!

Of the 4 white wires to the modem, which would you put a switch on? Seems like you could add one by drilling a hole somewhere on the Capa case and put in a shut off switch...