Most people will tell you that MOM does not dictate the number of first aid boxes you need to have. This is not true at all. 

There is actually a minimum quantity that MOM needs the company needs to have. This is the part where many people don’t know. 

That requirement is that every floor in your building must have at least one, and it is written in the first aid regulation.

Meaning to say, if your building is 4 stories high, you need at least 4 already. 

Once you fulfil this requirement, any extra first aid box is up to you. But there must be one first aid box in each floor level at minimum. 

So it is not up to you to decide how many you want to put, MOM already gave you a minimum number based on this requirement.