supply of automatic air freshener dispenser , automatic air freshener dispenser, wall - mountable and battery - operated, suitable for freq uent passenger use in railway coach lavatories and passenger seating areas. the dispenser shall be manuf actured from durable, recyclable engineering plastic, with tamper-resistant lockable cover. it shall operate on non aerosol, fuel-cell or equivalent advanced technology, designed to provide continuous and uniform fr agrance release for 24 hours a day, with cartridge options for minimum 30/60/90 days life. the unit shall op erate noiselessly, without moving parts, and be compatible with standard aa alkaline batteries. malodor ne utralization 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. make- oxy-gen pro/suprem e or equivalent product from other reputed brand of similar technology. [ warranty period: 30 months aft er the date of delivery ] ]