Under normal circumstances, silica gel powder does not have obvious harm to the human body, and it is considered a relatively safe substance. Silicone powder is a non-toxic, non-hazardous substance used in many applications in both industrial and consumer products. However, proper precautions still need to be taken to ensure safe use.

Here are some safety considerations for silica gel powder:

1. Avoid accidental ingestion: Silica gel powder is a harmless hygroscopic agent, but still should not be swallowed. Silicone powder can cause discomfort, especially for small children and pets, if swallowed. Therefore, silica gel powder should be kept out of the reach of children and pets.

2. Avoid contact with eyes and skin: Although the contact of silica gel powder itself to the skin and eyes generally does not cause serious problems, it may cause some discomfort, such as dryness or irritation. If silica gel powder accidentally comes into contact with the skin or eyes, immediately flush the affected area with plenty of water.

3. Avoid inhalation: When handling silica gel powder, it is best to avoid inhaling its dust. While silica gel powder is not an intentionally hazardous dust, inhaling large amounts of dust over an extended period of time may cause respiratory irritation or discomfort.

4. Do not reuse: Silica gel powder that has absorbed moisture should not be reused, because its moisture absorption performance has been weakened. When using silica gel powder for hygroscopic packaging, it is best to replace the used silica gel powder with new ones.

In general, silica gel powder is generally safe for the human body if it is used according to the guidelines and safety measures. However, if any discomfort or ingestion occurs, medical help should be sought immediately. When using silica gel powder, the manufacturer's recommendations for safe handling and warning labels should also be followed.