BreathiZen is advertised with a 60-day money-back guarantee, stated to apply even to empty bottles. We'd suggest confirming the exact current conditions directly at checkout before ordering.
Contact BreathiZen's official customer support directly — not this website — with your order number, within the guarantee window confirmed at your time of purchase.
Mark your deadline the day your order arrives. It's the single most useful thing you can do to protect your guarantee.