Techno Systems Pvt Ltd offers Air Purifier with Seven Stages of Filtration. Techno Systems Pvt Ltd manufacturers and suppliers of high quality electronic products. The Air Purifier with Seven Stages of Filtration is recommended for use in ICCU, Operation Theatres, Nurseries, Computer Rooms, and Conference Halls. The Air Purifier with Seven Stages of Filtration incorporates the latest advances in air purification technology. It is equipped with SEVEN stages of purification to give pure clean air.