This is what Karcher, the industrial dust extraction experts, are saying:

Construction dust is a general term used to describe the types of dusts typically encountered when working in the construction industry. As well as being a nuisance, when not correctly controlled, these dusts can seriously affect your breathing, damage your health, and with prolonged exposure some types can cause life-changing lung diseases and even kill.

We are all familiar with the day-to-day fine dust particles found in the atmosphere, such as: human skin cells, textile fibres and even burnt meteorite particles, however workers in the construction trade are faced with layers of more extreme varieties of dust.

Read more about it here on the Karcher website: https://www.kaercher.com/uk/professional/dust-extraction.html