What are the effects of long-term exposure to ethylene oxide? asks Cassandra Dunn, Registered Nurse and Certified Federal Medical Investigator. Ethylene oxide (C₂H₄O) is a chemical that is used to create other chemicals, like polysorbate 20 and polyethylene glycol (PEG), which are often more effective and less toxic. Ethylene oxide is a very hazardous substance. … Continue reading Certified Federal Medical Investigator Gives Terrifying Info About COVID Testing Swabs