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Most cordless or wet-dry vacuums specifically warn against adding bleach to the water tank, as it can damage internal components.

For most cleaning tasks, bleach should be diluted with water rather than used at full strength. MANUAL FOR COVID-19 PREVENTION AND CONTROL Zbardhues

It is used in washing machines to brighten whites. Most manuals, such as those from Beko , advise adding liquid bleach only to the designated compartment (often marked with a triangle or "max" line) to prevent fabric damage. Most cordless or wet-dry vacuums specifically warn against