Here ya go! https://www.amazon.com/gp/product/B088JZTTD4/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
Maybe you can prime one of these overnight.
There's no need to worry about exposure if you just purchase a gas mask, you can get them for less than $30 on amazon or ebay