The Oxyfresh programmable air freshening system is designed for freshness that doesn’t fade. This noiseless dispenser delivers continuous and consistent fragrance up to 600 sq. ft. Each 32 ml cartridge contains 100% pure fragrance oil with no added solvents or alcohols with 6.5x more fragrance oil than metered aerosol. Fragrance output level can be set for 30, 60, or 90 days of fresh air from your Oxyfresh. Reliable Performance Safe & eco-friendly Cost-effective