These filters represented very good value for money. They're not as heavy as the ones I've bought on eBay before, but both together cost less than what I paid for the heavier one. Will probably buy them again if I need more.
Xiaomi Mi Robot Vacuum Cleaner 1S Global Robot Vacuum Cleaner, white
389 Review
Dyson V8 Absolute: The Ultimate Cordless Vacuum for Effortless Cleaning
142 Review
Xiaomi Mi Robot Vacuum-Mop 2 Lite RU robot vacuum cleaner, white
198 Review
Robot vacuum cleaner Roborock S5 MAX Global, black
298 Review