Semi or doubles, which do you prefer for bulk?

Most of the dust is not visible to your eye but regardless you should wear your respirator whenever loading, unloading and until all gear is stowed. Over a career those fine particles will take their toll on your health and its not pretty.
Singles, doubles? Take the one that pays the most. Some places don't pay a premium for doubles/weight

 

Always move the hvac to inside air to reduce dust in the cab after loading or unloading and change the cabin air filter a lot more often.

When I was doing dry bulk I went to inside air before checking in to load or unload and I changed the cabin air filter at 45 to 60 days.

I also also wore my dust mask on every load or unload of any product that had a warning on the WHIMIS sheet for that product

 

Depends on what you’re doing. If it’s somewhere tight or you have to split the load,doubles will be better, if not, a semi trailer will be better.
You will notice how much you get on yourself in a couple months. It will build up in your shower and washing machine.

 

My lungs are lined with limestone dust. You should wear a face mask able to filter that finely. Limestone in powder form temporarily put me out of the bulk business for a while due to contamination in the lungs. They will probably sweep it out of the crematory when it's time lol.

I prefer a single trailer.