Scientific laws are considered established and universally applicable (to certain class of things or phenomenon under appropriate conditions) but not necessarily definitive. Also called laws of science.
Afflictions of the respiratory system include irritation and infection of the ears, nose and throat. Respiratory problems also may involve congestion, which can be decreased by inhaling rosemary (especially the verbenone type), hyssop (use var. decumbens only), tea tree, eucalyptus, lavender or peppermint.
Also, Romanian scientists have seen similar results after just seven days of inhaling lavender essential oil vapor for 60 minutes a day. They found that diffusing lavender oil protected cells from damage that can lead to cancer. *I have many of my patients use a diffuser with their essential oils for health benefits.