Sure thing. It basically just circulates warm air around the filament. The filament doesn't move, it just sits on a small turn-table so it can be fed directly from the unit. It's not really a complicated machine
For PLA the recommended temperature is 45C/115F. If you plan to dry an entire roll of PLA it takes about 4 hours (a little less if the PLA spool is "open" on the side). The PrintDry guys also supply such open spools and an STL files for printing a re-spooler.
What I have had great success doing is run it for about an hour before printing and then also during. As the filament comes of the spool and more is exposed, it is dry by the time it reaches the printer.
What is also neat is that you can use it to dry desiccant packs as well (so you can reuse them).