It filters whatever bioweapons were causing the symptoms and they have probably had this filter for decades. The kidneys and livers of healthy people will do the same thing. What we all had access to if needed, and Trump told us about it, was UV light blood irradiation therapy. So many remedies and cures. Its clearly written in the Constitution that there shall be no mandated vaccines if there are known and approved remedies. Nice to see more coming forward so we can better fight against these illegal vaccination mandates. Where I live restaurants are demanding that all workers be vaccinated or loose their job. I hope they are sued in a modern day Nuremberg trial.