As a Steelworker you are required to operate sheet-metal tools and to apply basic sheet-metal layout techniques. In many Naval Construction Force (NCF) projects, sheet metal is used to protect the exterior of buildings by using flashing, gutters, and at times, complete sheet-metal roofing systems.
Other essential oils have anti-microbial actions, protect against colds and are highly effective for respiratory support, whose essences can be inhaled to address ear, nose, throat and lung problems. These include: 1  Frankincense (Boswella carteri). 2  Lavender (Lavandula augustifolia). 3  Lemon (Citrus limonom).
Steam inhalation of essential oils can can provide a potent direct method. This is excellent for the inhalation of eucalyptus oils to treat coughs, as well as sinus and respiratory infections (except with children under the age of seven). Peppermint oil can be used the same way to treat fatigue or nausea.