They work as they should. I've found for some reason that my vacuum's filter housing tends to stick out more when I'm using it. (the one that uses the pleated filter). I don't understand why this is because the airflow seems to be exactly the same and the filter fits perfectly in the case. They seem to be just as good as expensive name brand filters. I simply tied an elastic cord around the filter housing to keep it from popping out again.
Xiaomi Mi Robot Vacuum-Mop Essential Robot Vacuum Cleaner, white
284 Review
Vacuum cleaner Deerma DX118C RU, white/grey
144 Review
Vacuum cleaner Deerma DX700, white
240 Review
iRobot Roomba 692: Smart Robot Vacuum with Wi-Fi, ๐ค Alexa Compatibility, and Pet-Friendly Features for Effortless Cleaning on Any Surface
138 Review