The Truth about Surplus Gas Masks

The truth about army surplus gas masks/respirators.
There is a massive about of misinformation online about army surplus gas masks and respirators. Regarding how long they last, what type of filter you should get, how long filters last etc.
This video aims to explain the entire process of choosing a type of mask.
Once you have a gas mask, conduct a fit test by using Isoamyl Acetate/Banana oil or another strong smelling substance to check the seals. Once you know the mask works and hack a stockpile of sealed in-date filters, the mask will be perfectly reliable.

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