It is a fact that most business owners based in offices, or those responsible for an office building, will hire a commercial cleaning company to ensure that the aforementioned offices are kept as clean as possible for the benefit of both employees and those who visit.
The level to which a commercial cleaning service hits the highest of standards can be readily checked visually by simply walking around the areas within the office they are responsible for cleaning and checking the cleanliness or otherwise of those areas. However, an equally important role that a commercial cleaning company has cannot be so easily checked. That task is to ensure that germs are eliminated.
Given that germs are microscopic, the odds of you visually being able to see their presence or not is nigh on impossible, except if you are prepared to walk around with a microscope, which we doubt would be practical. Nevertheless, you can ensure that the work of not just cleaning but also sanitising your offices is carried out effectively, by monitoring the cleaning tasks and inspecting those areas where germs are likely to thrive.