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> your entire wardrobe is flannel, cotton or linen

This is not that hard to accomplish and I've done it somewhat by default just by being a bit mindful about how my fabrics feel.

Still, I'm curious about your comment. I assume the airborne particles are from synthetic materials? Are any from soaps that go through the cycle, and if so, is liquid or powder a better option? It would be interesting to see data on microplastics in our laundry since most of what I see is focused on foods and water supply.