Systematic cleaning of a room

The cleaning result is determined by four factors that together make up 100 %: chemicals, mechanical action, temperature and time. If you turn one up, another can often be turned down — if, for example, you cannot scrub (low mechanical action), you compensate with a longer contact time, a higher temperature or a stronger product (within what the surface can tolerate).

Stock the cleaning trolley with the colour-coded equipment you need: cloths and mops in the right colours, dose the working solution according to the label, and take bin bags and refills (soap, paper). That way you avoid going back and forth — and picking up the wrong equipment.

Empty waste bins, collect loose rubbish and clear free surfaces before you clean. It is hard to wipe a table covered in things, and loose dirt lying about is easily spread during wet cleaning.

Start high (shelves, horizontal edges, furniture) and work downwards towards the floor. Dust and dirt fall downwards — if you do the floor first, it will have to be done again when you wipe higher up afterwards.

The floor is always the last step in the room.

Work systematically through the room in one direction (e.g. clockwise) and work from the cleanest surfaces towards the dirtiest, so you do not carry bacteria the wrong way. A fixed pattern ensures no object group is forgotten and that you do not do the same thing twice.

Dust with a dry microfibre cloth before wiping damp. If you wipe damp over dust, you create mud and streaks. The dry → damp order applies to both furniture and floors.

Touch surfaces such as door handles, handles, switches, handrails and fittings are touched by many people and are the most important for hygiene. Wipe them thoroughly with a damp cloth (blue zone for general surfaces) — this is where infection is most often transmitted.

Finish with the floor, then go over the room: are the four INSTA 800 object groups (furniture, walls, floor, ceiling) clean, and are there no visible stains or deposits? A short self-check catches faults before the quality inspection does.