The Chinese-made teargas grenades used in Hong Kong are very dangers. It’s hard to remove and with a higher toxicity.
The Hydrogen Cyanide gas detector has a reading was 12.1 ppm in Wanchai on November 2, which exceeded OSHA (10 ppm), over 2.5 times of NIOSH and ACGIH (4.7 ppm).
Allegedly say, the CCP’s tear gas contains a lethal dose of cyanide, as shown in the picture below, the Prussian blue.
And it’s very powerful and can melt the bitumen road.
Stand with Hong Kong!