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EFFECTIVE  USAGE

For hospital, sick person, baby less than 2 years old but more than 1 year old or person with delicate health

No of Person                  Cartridge                 Filter Element

      2-5                               4 months                      1 Month

       6-8                              3 months                      3  weeks

       9-12                            2 months                      2 weeks   

      13-20                           1 month                        1 week

      20-30                           2 weeks                       3 days  

ECONOMICAL USAGE 

Residential Houses

No of Person                  Cartridge                  Filter Element

      2-5                             6-8 months                        2 Months

       6-8                             5-6 months                        6  weeks

       9-12                           4-5 months                        4 weeks   

      13-20                          3-4 months                        3 week

      20-30                          2-3 months                        2 weeks  

      30-50                          1-2 months                        1 week

      50 and up              2 weeks to 1 month                 2 days

CARINDERIA, RESTAURANT and PUBLIC PLACES

Daily Customers            Cartridge                 Filter Element

      50 & below                  6 months                        2 months

        51-100                      4 months                        1 month

        101-150                    3 months                        1 month   

        201-300                    1 month                          1 week

        301-400                    2 weeks                         4 days  

       401-up                       1 week                          2 days

SCHOOL

No of students      Cartridge            Filter Element    # of Purifier

         250                    1 month                   1 week                  1

         500                    1 month                   1  week                 2 

        1000                   1 month                   1 week                  4   

         or                                                      

       1 TUPURO / 250 students