Friday, July 24, 2016. Oakland, CA. Helpful hint for those of you struggling with your bottled-air budgets. Mix in a little household air. A two to one ratio should bring your monthly outlay below $2,800. Be certain your ambient air intake hose is hooked up at least two meters from the nearest micro-wave sink, as iron atoms struck loose by radiation will be attracted to lung staples, even those made from crystal. In fact, if you’ve had your lungs stapled for any reason — weight loss, carbon dioxide retention, or tissue beautification — better to stick with your trusty bottled air.