supply of supply of automatic air freshener dispenser , supply of automatic air freshener dispenser, wall mountable and battery-operated, suitable for frequent passenger use in railway coach lavatories and passenger seating areas. the dispenser shall be manufactured from durable, recyclable engineering plastic, with tamper resistant lockable cover. it shall op erate on non-aerosol, fuel cell or equivalent advanced technology, designed to provide continuous and unif orm fragrance release for 24 hours a day, with cartridge options for minimum 30/60/90 days life. the unit s hall operate noiselessly, without moving parts, and be compatible with standard aa alkaline batteries. malo dor neutralization system shall be provided using proprietary or equivalent advanced technology. each unit shall be supplied with one cartridge refill. item should be in original oem packaging, along with manufactur ers warranty certificate and authorization letter from oem/authorized distributor. a sample shall be submitt ed to the consignee for approval prior to bulk supply. accepted benchmark: oxy-gen pro/supreme. (warran ty period: upto 30 months from the date of delivery.) [ warranty period: 30 months after the date of deliv ery ] ]