Thank you John.
With the paints we use in our hobby I know they can cause particles to float freely around the bench and room with the potential to negatively affect my lungs. Even though I stick to Vallejo acrylics the particles are still present. I have resorted to wearing, what I call my fighter pilot mask lol. It is a snug rubber mask.
Johns Hopkins has such a wealth of information on so many topics. I like how things are explained in a way that the average user can understand.