1. Different parts: Sanitary incense is the white wood part of Aquilaria sinensis, while Aquilaria sinensis is the fragrant part of Aquilaria sinensis, which is a mixture of oil and wood parts.

2. Different scents: Sanitary incense generally contains no resin, and its fragrance is relatively simple, which may include the scents of natural plant materials such as mugwort, calamus, agarwood, sandalwood, rose, jasmine and lavender. The fragrance of agarwood is very unique, known as the six countries and five flavors. The fragrance of agarwood from different producing areas also has its own characteristics, usually sweet, milky and floral, and the fragrance is elegant and changeable.

3. Different functions: Hygienic incense is mainly used in occasions such as offering sacrifices, burning incense, removing peculiar smell, etc., while agarwood not only has fragrance, but also has sedative, health-preserving and medicinal values.

To sum up, there are obvious differences between agarwood and sanitary incense in position, fragrance and function.