Anonymous ID: fadd7b March 3, 2020, 1:34 p.m. No.8310388   🗄️.is 🔗kun   >>0412 >>0444

>>8310358

Ozone will 100% kill you in high enough concentration. 50 parts per 100 million was the usual test level for what I was doing and 72 hours at that concentration resulted in 10 years worth of ageing.