KNOS: Their Air Filters Kill COVID-19 "INDUSTRY CERTIFICATIONS – The manufacturer of the KRONOS® AIR 5G® is certified by the California Air Review Board (CARB)." KNOS has asked FDA to verify to ensure legalities. Look at the three month chart. RSI only just about 50. Do your DD https://www.otcmarkets.com/stock/KNOS/news/KRONOS-ADVANCED-TECHNOLOGIES-INC-TICKER-KNOS-IS-NOW-TAKING-PRE-ORDERS-FOR-KRONOS-AIR-5G-AIR-PURIFIERS?id=266110