On The Bottom line, we are continuing our series looking at students in the region who are getting ready for the National Student Enterprise finals on May 14th.
And this week we are hearing from a student at St Macartan's College in Monaghan, who has devised the "Copper Case".
Matthew McVicar's Copper Case is designed to keep you safe by killing harmful bacteria and viruses which reside on your mask.
The inside of the cases are lined with copper, and once your mask comes into contact with the copper, the copper ions attack the bacteria and viruses on the mask.
Studies from the University of Southampton have shown that copper surfaces deactivate Covid-19 within 3 minutes.
Matthew spoke to our reporter Diarmuid Pepper about how the copper case works and about how sales have been going so far: