Reducing enclosed cab drill operator's respirable dust exposure with effective filtration and pressurization techniques

The overburden removal and mining process can be extremely dusty and therefore cause excessive dust exposure. A cooperative research effort has been established between NIOSH, US silica Co, Clean Air Filter Co and Red Dot Corp to lower respirable dust levels in an enclosed cab on an older surface drill at a silica sand operation. In that aim, once the testing and sampling completed, modifications were made to improve cab's filtration and pressurization system that appear to be the two key components necessary to improve air quality.
Although that research was directed towards mining industry, results can be applied to agricultural or construction equipment.