Ozone Generator (ionizer) Air Purifier Case

I designed this case to house an ozone generator module found on ebay, sold as "ionizers" or air purifier modules. The model I purchased runs from 12Vdc I designed the case to take a barrel power connector (8mm od). The holes are designed to accept 3mm or #4-40 fasteners. I included hold down fastener locations for the module, but they aren't really required I found it friction fits in place reasonably well.