Want to talk about air quality? Every Tuesday from now until Dec. 15, we’ll be chatting about this topic on Open Call. Come join us!


Filters

We're collecting a range of resources from communities and projects focused on water and air filtering. (Lead image: @shanlter) This page needs organizational help! Please help by tagging content with `filters` or with `air-filters` or `water-filters`. Thanks! ## Questions [questions:filters] ### Water filtering [nodes:water-filters] ### Air filtering [nodes:air-filters] ## Activities [notes:grid:activity:filters] ...

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