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Behind the scenes

Red, blue, green, yellow: the color code of a clean home

Sofia Bauer
Sofia Bauer
Head Crew Trainer
Dec 18, 2025 · 4 min read

Open any Klar kit and you will find four colors of microfiber cloth. It is not decoration; it is the single most effective way to stop cross-contamination between rooms.

  • Red — toilets and urinals only
  • Yellow — bathroom sinks, showers and tiles
  • Blue — glass, mirrors and general dusting
  • Green — kitchen and food-contact surfaces

After every visit, cloths are bagged by color and laundered at 90°C back at the studio. Each cloth is retired after 300 washes, when the fibers lose their grip.

“If you remember one thing: never let the bathroom cloth see the kitchen.”
The same logic applies to sponges and gloves — one color per zone.
The same logic applies to sponges and gloves — one color per zone.

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