After production testing, a small amount of residual water may remain in the Portable Deep Cleaner tube. Since the water release button functions as a physical switch, pressing it while the Portable Deep Cleaner is powered off will still dispense any remaining water in the tube. Please exercise caution to avoid pressing the water release button when removing the fabric cleaning brush head.

Note: Regarding the cleaning efficacy of the Portable Deep Cleaner, the bristles on the fabric cleaning brush are designed to be dense and firm. Please be aware that intense cleaning could remove fibers from delicate fabrics. Please avoid using this brush on fragile or valuable items.

If you have any other questions about the E28 robot, please don't hesitate to contact eufy Support Engineers for further assistance.