Do you find the filter in Up Box+ helpful?

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uplus2user
Posts: 62
Joined: Mon Feb 23, 2015 11:36 am

Do you find the filter in Up Box+ helpful?

Post by uplus2user » Tue Jan 30, 2018 8:38 pm

How effective it is for the filter to filter out toxic particles? I guess it is difficult for individual users to test its effectiveness.

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