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).
Below are several ways to use aromatherapy to remedy the common cold: 1  Add boiled water to a bowl and add a few drops of eucalyptus. 2  Place a towel over the head to create a steam tent, close the eyes to avoid eye irritation and slowly inhale in the aroma for 5 to 10 minutes. 3  Repeat 2-3 times a day until symptoms abate.