Do You Have Allergies?
Do You Have Allergies? If you find that the above symptoms are lasting two or three weeks or even a few months, you are probably dealing with an allergy. To find out what causes the allergy, you may need: Research suggests that particle size is an important factor that influences how particles deposit in the respiratory tract and affect human health. Coarse particles are deposited almost exclusively in the nose and throat; whereas, fine and ultrafine particles generally are able to penetrate to deep areas of the lung. Fine and ultrafine particles are present in greater numbers [...]
