Gas Masks are Prudent Investments
There are two basic types of gas masks: the half-mask air purifiers and the full face hooded type. The hooded masks offer protection to your eyes. The half mask may not be as effective because the eyes are very sensitive to chemicals and offer an entry point for bacteria. The downside of the hooded type of gas mask is that they are bulky and less easy to get on in a hurry.
More about gas masks - how they work and why they’re good investments