Oxygen-Pro Programmable Air Freshness System - Cartridge (Flair) Flair Favour A pure, clean fragrance of delicate florals and watery notes. Oxygen-Pro Cartridge information When using the cartridge, the dispenser can be programmed to work for 30 days, 60 days or 90 days. The cartridge contains 35 ml of pure fragrance oil, that is app...