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).
This is the use of essential oils on hot compress, in diffusers, or in hot water for inhalation. Standard dose is 10 drops. Best for respiratory and sinus, headaches. Caution: prolonged inhalation of concentrated essential oils can cause headaches, vertigo, dizziness, nausea, and lethargy.