OxyMax 10 comes with a smart mechanism that maintains ambient oxygen levels between 20.5 percent to 21.5 percent, shutting-off and starting-on, whenever necessary. So, after you started the machine for the first time during installation, you can pretty much forget about it. Leave it on, and it would ensure that your house is always oxygen optimized. When you return home after a hard day’s work, the invigorating benefits of oxygen would quickly restore your energy levels so that you could look forward to an evening of fun and activity.