Dallas Mining Services offers an extensive range of ventilation, management and consultancy services, offering advice from years of experience in mine ventilation.
Dallas Mining Services' expertise is often on display at industry conferences, represented by John Rowland. Articles and papers are available here for download.
"John... thank you, I now feel confident to use the Ventsim program and to update it following each monthly vent survey and to use for modelling potential vent changes.."