[agentultra]

It's probably nearly impossible at this point to avoid them entirely. They're in the air and have been detected in remote parts of the world with little human activity.

You could minimize contact more: prefer clothes without synthetic fibres. One possible vector for microplastics could come from dryer lint containing broken down bits of plastics from clothing: acrylic paints off of metal buttons, fibres, plastic buttons, etc.

If you eat fish, minimize your intake or consider avoiding them entirely. Another possible vector is accumulation through the food chain.

As always: reduce the need or dependence on plastic products in general.

Buy produce from local producers and wholesalers instead of grocery chains that wrap food in way too much plastic and packaging.

If you shave body hair consider using a straight or safety razor instead of disposable ones.

Reduce, reduce, and where you can't: reuse.