I replaced both filters in my old Dyson and it works like new again. What I don't understand is why the post motor filter isn't part of a guide on the Dyson site and that's why my Dyson didn't work. I didn't even know it was there and it took me 2 minutes to replace it. It wasn't until I wanted to buy a pre-filter that I saw this and bought the combo pack. Now everything is in order.
Vacuum cleaner Deerma DX118C RU, white/grey
144 Review
Xiaomi Mi Robot Vacuum-Mop Essential Robot Vacuum Cleaner, white
284 Review
iRobot Roomba 692: Smart Robot Vacuum with Wi-Fi, π€ Alexa Compatibility, and Pet-Friendly Features for Effortless Cleaning on Any Surface
138 Review
Xiaomi Mi Robot Vacuum-Mop 2 Lite RU robot vacuum cleaner, white
198 Review