ERV recommendations for my situation

So we switched our upstairs HVAC to mini splits, now I’d like to get some ventilation in there. Climate is northeast US: hot, humid summers and cold winters, with fairly… So we switched our upstairs HVAC to mini splits, now I’d like to get some ventilation in there. Climate is northeast US: hot, humid summers and cold winters, with fairly…Read MoreGreenBuildingAdvisor