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.
Lung volumes. Lung volumes and lung capacities refer to the volume of air associated with different phases of the respiratory cycle. The average total lung capacity of an adult human male is about 6 litres of air. Tidal breathing is normal, resting breathing; the tidal volume is the volume of air that is inhaled or exhaled in only a single such breath.