Look up EO ethylene oxide which is perhaps the most common used sterilization agent use for the tips of nasal swabs used in the fraudulent PCR testing procedures that are now being pushed onto anyone entering Canada.

If you’ve been coerced to get tested you may want to contact your lawyers ASAP. This is NOT a joke, you may have been harmed by this invasive testing and your rights violated due to not having prior and informed consent to experimental and harmful invasive testing which is prohibited under the nuremburg war crime code.