Infusers
FORLIFE Brew-in-Mug Extra-Fine Mesh Infuser Basket
Drops into the mug. Catches the dust. The lid doubles as a saucer.
By vessel
Infusers.
Mesh, basket, ball. Hold the leaves. Let the water through.
What we recommend.
2 reviews 
Infusers
OXO Good Grips Twisting Tea Ball Infuser
Twist. Drop in. Pull out. Drawer staple for a decade.
Other vessels