I use it to clean BBQ ash and the blue coated filter helps remove the ash by shaking the filter into dirt. Then, after the third use, I wash the filter and make sure it's completely dry before putting it back on the vacuum. I plan to order a replacement part.
iRobot Roomba 692: Smart Robot Vacuum with Wi-Fi, 🤖 Alexa Compatibility, and Pet-Friendly Features for Effortless Cleaning on Any Surface
138 Review
Vacuum cleaner Deerma DX118C RU, white/grey
144 Review
Vacuum cleaner Deerma DX700, white
240 Review
Xiaomi Mi Robot Vacuum-Mop Essential Robot Vacuum Cleaner, white
284 Review