supply of ent workstation or opd treatment unit supply of ent workstation or opd treatment unit in ent department , ent workstation or opd treatment unit : instrument trays ( separate for sterile and used instruments ) , otoscope, x-ray film viewer ( warmer for defogging laryngeal mirror ) , suction, endoscopes ( 0 degree and 70 degree one each with 4mm diameter and 175mm length ) , 0 degree otoendoscope with 4mm diameter and 2.7mm length, light source ( cold light ) for connecting to endoscope camera and monitor systems. doctors chair with 360 degree rotation and adjustable back and height. patients chair with arm rest and height adjustment.