Guides
Replace a Roborock S7 or S8 filter
Washable S7/S8 filters are a listed family. Rinse, dry fully, then seat the frame so the seal is flat.
Roomba Combo vs vacuum-only parts
j7 and Combo j7+ share a name and not always a battery, mop pad, or bag SKU.
When to replace brushes and bags
Brand intervals are a starting point, not a fit verdict.
How to read the model nameplate
Compatibility is the string on the robot, not the box nickname.