As a general rule of thumb, to maintain hygiene and balance cost, we calculate per every
7 people = 1 cleaning day per week.
Please see our below guideline for this:
< 7 people = 1 day cleaning per week
14 people = 2 days cleaning per week
21 people = 3 days cleaning per week
28 people = 4 days cleaning per week
> 35 people = 5 days cleaning per week.
Here is an interesting video that shows how germs can spread in an office of just 5 people without even touching each other.
https://www.youtube.com/watch?v=Rso6k0kwqXY