Cleaning Speed Upgrade
Cleaning speed can be upgraded later in the game, beyond the described cleaning-fluid option.
How it works
The source states that cleaning speed can be upgraded further later in the game. It does not name this upgrade, specify how it is unlocked, or describe its numerical effect. This is distinct from the perk-gated cleaning-fluid option, whose stated effect is quicker stain disappearance.
Read the supporting references
A source-bounded reference to story-mode tool functions and described upgrades or perk unlocks in House Flipper 2. It records their stated operation and restrictions; it does not establish comparative effectiveness, exact progression costs, or current meta. Sandbox tools are explicitly described as differing, and are outside this scope. Guidance explains the referenced mechanics; it is not a tested damage ranking. Check the stated edition and source version before applying a patch-specific detail.