Ethylene Oxide (EO) on Covid PCR Tests link at bottom

Side effects of EO, Ethylene Oxide
Emergency Overview: Colourless gas. Sweet odour. DANGEROUSLY REACTIVE.
VERY TOXIC. Fatal if inhaled. May cause respiratory irritation. May cause drowsiness and dizziness. CORROSIVE. Causes severe skin burns and eye damage. CANCER HAZARD. May cause cancer. REPRODUCTIVE HAZARD. May damage fertility. MUTAGEN. May cause genetic defects.

Main Routes of Exposure: Inhalation.

Inhalation: VERY TOXIC. Can cause severe irritation of the nose and throat. Can harm the nervous system. Symptoms may include headache, nausea, dizziness, drowsiness and confusion. A severe exposure can cause unconsciousness.
Skin Contact: CORROSIVE. The gas irritates the skin. Direct contact with the liquefied gas can chill or freeze the skin (frostbite). Symptoms of mild frostbite include numbness, prickling and itching.
Eye Contact: CORROSIVE. The gas irritates the eyes. Direct contact with the liquefied gas can freeze the eye. Permanent eye damage or blindness can result.
Ingestion: Not a relevant route of exposure (gas).
Effects of Long-Term (Chronic) Exposure: Can cause dry, red, cracked skin (dermatitis) following skin contact. May harm the nervous system. In severe cases, symptoms may include muscle weakness, loss of feeling or prickly sensation in the hands, feet, arms or legs, clumsiness and paralysis. May cause an allergic skin reaction in some people. May cause asthma or an asthma-like reaction in some people.
Carcinogenicity: CARCINOGEN. May cause cancer. Has been associated with: cancer of the blood or blood system.
International Agency for Research on Cancer (IARC): Group 1 - Carcinogenic to humans.
American Conference for Governmental Industrial Hygienists (ACGIH): A2 - Suspected human carcinogen.

Teratogenicity / Embryotoxicity: May harm the unborn child. Conclusions cannot be drawn from the limited studies available.
Reproductive Toxicity: REPRODUCTIVE HAZARD. May cause reproductive effects in men and women based on animal information. Known to cause: reduced fertility.
Mutagenicity: MUTAGEN. May cause genetic damage. Exposure of the parent may cause effects in children.
https://www.ccohs.ca/oshanswers/chemicals/chem_profiles/ethylene_oxide.html