Greetings,
I am planning to build a system that would operate in a potentially quite dusty environment, despite being indoor, and since I planned to use laser range finding within it, I was wondering to which point it was subject to perturbations caused by dust?
I was first planning to use the LIDAR-Lite Laser Rangefinder (PulsedLight) (RB-Pli-01), or maybe even a product by Parallax, but would it be robust enough in such conditions? And if not, are there alternatives? Would a Hokuyo-like laser scanner be more robust? Or maybe IR telemetry?
I am looking forward to your answers 
Have a good day
Not many sensors are meant to be used in dusty environments. There is not much information available about how the Lidar Lite will react in a dusty environment, but we can imagine the leses will be covered in dust and as such, the optics will be impeded. You may have more luck with the laser rangefinder, but still, it may be a matter of testing it in your specific environments. These do not have IP ratings. Can you tell us more about the environment and application?
The purpose would be to navigate in indoor construction sites, so concrete dust might be present in various quantity… Hopefully not too much in most of the cases
It will take some experimentation, and like all items in a dusty environment, you might need to clean them every so often.
