Purchasing multiple mobile ozone machines for food workshop disinfection and purification
The customer is from (Thailand - Chiang Mai) and needs 4 mobile ozone generators. He has 4 rooms that need ozone generators, with an area of 70 square meters, 80 square meters, 100 square meters, and 150 square meters. The floor height is 3.5 meters. One ozone generator is needed for each room. How many specifications of ozone generators are needed?
