Every time the Dreame X40 Pro Ultra finishes a cleaning session and returns to dock, the base station activates its suction to pull collected debris from the robot’s bin into the dust bag. That process works reliably as long as the bag has capacity and its filtration layers are intact. As the bag fills or the filter material compresses from repeated cycles, airflow drops. The result is incomplete emptying and, eventually, the robot carrying residual dust into its next cleaning run.
Each bag in this four-pack is constructed with the same dimensions and fitting as the original Dreame dust bags, so installation in the X40 Pro Ultra’s base station is identical: slide the bag in until it clicks into place. Where these Plus.Parts® bags differ from generic alternatives is in the filtration: four layers instead of the standard three, with melt-blown material providing the fine particle capture that keeps indoor air cleaner during and after the auto-empty cycle.
Every bag in this pack meets the same material and construction standard, so there are no weak units mixed in. The filtration holds, the edges hold, and the auto-seal works reliably every time. If you are unsure about compatibility with your specific model variant, our team responds personally.
At a glance
- Double Heat-Sealed Edges – Reinforced seams prevent tearing under the repeated suction pressure of the auto-empty cycle.
- 3-Litre Capacity – Each bag holds the same volume as the original, lasting 8 to 10 weeks before needing replacement.
- Reliable Quality – Consistent materials, reliable fit, and a team that takes responsibility when something is not right.
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