However, the 10% tea tree oil cream doesn't seem to cure the infection. A stronger tea tree oil solution (25% or 50%) is needed for that. Application of 25% or 50% tea tree oil solution appears to both relieve symptoms and clear up the infection in about half of people who try it for 4 weeks.
Vital capacity (VC): the volume change of the lung between a full inspiration and a maximal expiration. 1. The maneuver is performed rather slowly. The vital capacity is assessed during an inspiratory maneuver. Starting from end-tidal volume the subject expires maximally and subsequently makes a full inspiration.
Exhalation, similar to inhalation, consists of the standard tidal volume as well as the potential for an expiratory resolve volume (ERV). The ERV can be thought of as the amount of air that is pushed out after a normal breath if you were to exhale as much as possible. Another commonly used term is vital capacity (VC).