Proper posture is essential for efficient breathing. The bones should be lightly balanced one on top of the other so that muscles can remain relaxed. A rule of thumb when sitting or standing is to keep your head over your tailbone.
Get to a respiratory specialist for up-to-date testing and diagnosis if you have a chronic cough or other breathing problems. Unfortunately, lungs aren’t able to rebuild themselves (yet) so until that day comes we need to diligently protect what we’ve got.
Controlling air pollution, in homes and workplaces, is time consuming, complicated and terribly costly. The only thing more expensive is not controlling air pollution. Industry will only improve when faced with the overwhelming tide of public pressure. Vote and make your voice heard.
Be well. Breathe beautifully.