Why does my device's red LED flash 3 times and no smoke come out?
Please clean the device carefully with a cotton swab and try another pod. In daily use, please pay attention to clean the device, keep the inside of the device dry.
Also in Product Information
RELX Classic - What is the material of device and pod?
RELX Classic device is made of aluminum alloy with high strength and endurance. The shell material of cartridge is PCTG produced by Eastman in the US, which is mostly used to make aviation cups, milk bottle, etc. It is resistant to high temperature and will not release harmful substances, thus you can use it without any worries.