next time, look into buying a decent filter...
You can pick up an odorsock (used by canabis growers) for about $50. Stops all the dust, can be washed, and only limits the airflow by a very small amount
I just clean mine out at certain points. I think filtering each miner is a little overkill unless you have very dusty area. I normally just clean if I see something looking to dusty. I like air to push it out and if too deep in then a cloth or something and air from closer up.
But i agree a real duty spot some special requirements might need to happen. I so far have not had any issues with dust luckily hurting miners and have been in the game a while.