What is the best way to detect the presence of tear gas? — Parallax Forums

What is the best way to detect the presence of tear gas?

tomhannen Posts: 1

2013-07-29 04:50 edited 2013-07-29 04:50 in Accessories

I realise that tear gas can be several different things (Pepper spray / CS Gas / CR gas, PAVA, etc)
Is there a good way to detect some or any of these in the air? Ideally using an electronic sensor that can be reused?

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