This machine is used for producing the effective chlorine content in the water for disinfection, ranging from 10mg/L to 600mg/L.
In general, the requirement of chlorine concentration varies with different objects. View below table for details:

• Disinfection Objects or Purposes	Effective Chlorine Concentration
  Fruits, Vegetables, Skins, Swimming pool mats	10~25 mg/L
  Eggs, Seafood, Child diapers, Masks, Household sprayer,   Pets shower detergents	10~25 mg/L
  Kitchenware, Toys, Underwear, Underpants, Bed Sheet,   Sheet covers, Beddings in hotels and offices, Cars, Ships, Washing detergent,   Fridge cleaning agents, Surface treatment agents.	25~50 mg/L
  Tableware, Tablecloths, Bathroom curtains, Milk   bottles, Cans, Towels and Bathrobes in the household and public pools, Rags,   Bathroom scrubbing agent, Cattery, Kennel and Silkworm appliance.	50~100 mg/L
  Cold drink machine and Kitchen cleaning rags in   restaurants, Haircut utensils, Working clothes, Surgical masks, Spittoon,   Urinal, Ward beddings, Door handles, Patient Clothing, Warehouse and   Container for meat and seafood, Farms, Epidemic areas, Wound disinfection in   accidents, Wards for infectious disease, Mortuary disposal.	200~300 mg/L
  Bacterial reproducing areas, General   bacterial-contaminated equipment.	300~500 mg/L