Service life

  • With regular maintenance, durable device enclosure and non-filter element components provide a minimum of two years of service.

Key indicator

  • No performance degradation or component failures during laboratory testing to simulate two years of:
    • Daily cleaning and partial disassembly.
    • Regular insertion and removal of replaceable filter element(s).
    • Operation of valves, taps, seals.

Notes and exceptions

  • Low-income consumers may expect durable devices to function indefinitely with proper maintenance and repairs they can make themselves.
  • Other household appliances (analogues) owned by target consumers (mixers, fans, rice-cookers, etc.) operate two to three years with minimum maintenance.

Supporting evidence