Simple insect repellent course text

It is an official recognition text of the simple insect repellent course.
Please use
Themes taught by each pacie are as follows

1 Difference between medical aroma and general aroma
(2) Content of essential oil is important
3What essential oils have insect repellent effect
4 answers are eucalyptus lemons. Convey equation of action, component, and content
5Essential oil turns into ester over time "Ester is a good scent" Pharmacological effect is not a sedative insect repellent
6 When ethanol is used, the perfume is chemically transformed into an ester rapidly. No more insect repellent
7 Do not use purified water. The use of ethanol and purified water is a way of making perfume, evidence that essential oils are purchased from the fragrance industry
Do not use with 8 medical aromas.
9In addition, medical aroma can be used in various ways
10 How to make insect repellent spray