1. Do not use the tongue depressor if the package is damaged.
2. Discard the device after use. The device is meant for one-time use only.
3. The storage areas need to be well ventilated and free from corrosive gases.
4. It should be well equipped with fire and rat prevention, moisture, and pest control facilities and do not store at extreme temperatures.
5. Do not use it if it is over its expiration date.