The answer.
Our aim is to explain changes in a useful, understandable way. A reading needs context: the room, its occupants and what has been happening all matter. Monitoring can inform a decision, but it cannot guarantee that a particular action will solve an air quality issue.
A little more context.
A room changes through the day. To understand a reading, it helps to consider what was happening around the same time and whether the change forms part of a repeated pattern.
Our aim is useful explanation, with room for context. ALEX is being developed to support understanding; it cannot guarantee a particular outcome for every room or household.