Submitted by ZipZap on 04. März 2019
Please can anyone tell me about the changes that have taken place over the last 4+ years? Mine is 3G. Is the new one 4G? How often does the HEPA filter have to be changed? Is there a limit to how often the biodefense mode can be used? Is the autopilot #2 significantly better than #1? Any other thoughts would be greatly appreciated.