Aside from wearing a high quality gas mask continually, it is impossible to avoid air pollution entirely. Some of the pollutants -- notably nanoparticulates sprayed in chemtrails -- are very small, but many of these particles are also very reactive meaning that they bond to other particles in the atmosphere and are thus larger and more easily filtered out.
If you have a good filter where you sleep and where you work you can cut down your total exposure significantly. The goal is not to eliminate pollution exposure entirely but to decrease it within reason. Many people are not making any attempt to limit exposure, so making an effort puts you at a significant advantage.
It is also wise to have gas masks on hand in case bioweapons are unleashed or another serious disaster like Fukushima occurs upwind of you and yours.
If you have a good filter where you sleep and where you work you can cut down your total exposure significantly. The goal is not to eliminate pollution exposure entirely but to decrease it within reason. Many people are not making any attempt to limit exposure, so making an effort puts you at a significant advantage.
It is also wise to have gas masks on hand in case bioweapons are unleashed or another serious disaster like Fukushima occurs upwind of you and yours.