Wei developed a central air purification device (the return air duct type air purification device specifications, pipeline, combined wind cabinets) The scope and market analysis, shocking! ! ! Applications ①, hospital: ward, delivery room, treatment room, operating room, preparation room, supply room. ②, Blood: blood, sterile room and blood bank. ③, Pharmaceutical: sterile room, buffer room, warehouse, laboratory, studio and changing rooms. ④, research: between electronic clean rooms, laboratories, computer rooms, a buffer, warehouse, studio and changing rooms. ⑤, factory: between the workshop, a buffer, the Treasury and changing rooms. ⑥, food: hygiene products workshop, workshop, packaging workshop and warehouse, etc. ⑦, company: offices, meeting rooms, computer room and reception room. ⑧, Kindergarten: classrooms, recreation rooms. ⑨, Bank: stock, office hall, computer room, operating room, purse and so on. ⑩, public places: offices, theaters, hotels, entertainment, beauty salons, bus, train. 11, family: living room, Horizontal, children's room and so on. 12, field first aid: military, earthquake zones absolutely dry! ! ! Market demand and social analysis developed by Wei a central air purification device (1) Hospital: National Bureau of Statistics show that China's existing hospital 87 500, it is contemplated within five years 50% hospitals with medical sterilization Air Purifier or central air purification device duct air purification systems principle, every hospital with an average of 15 units, the total annual capacity of about 90,000 units, sales of 800 million yuan. Guangdong Province alone there are 327 hospitals. (2) pharmaceutical, food plants: the average annual sales of about 300 million yuan. (3) archives, computer room: the average annual sales of about 200 million yuan. (4) schools even more. Included in the international market demand, the product market capacity will reach more than 1.4 billion annually.