@CleanAirStars @maskupmelb @kate_cole_ @chrislee @CorsIAQ Perhaps same cost over time, but may be more convenient not to change as frequently.
@maskupmelb@kate\u cole\u@chrislee@CorsIAQ的CleanAirStars随着时间的推移可能会花费相同的成本，但不频繁更换可能会更方便。
@CleanAirStars @maskupmelb @kate_cole_ @chrislee @CorsIAQ Perhaps same cost over time, but may be more convenient not to change as frequently.
@maskupmelb@kate\u cole\u@chrislee@CorsIAQ的CleanAirStars随着时间的推移可能会花费相同的成本，但不频繁更换可能会更方便。