Is it FDA approved?

O+ is a recreational product intended solely for intermittent use. (Prolonged use is defined as uninterrupted intake for more than 8 hours). Since O+ is not a medical product or intended for medical use, it is neither regulated nor approved by the FDA. Setting the bar in recreational oxygen, Oxygen Plus is the only company that manufacturers its products in a clean room at a FDA-registered facility, producing each canister of oxygen with strict manufacturing processes that offer the assurance our customers are breathing the very best.