1. Check the labeling of the eye mask: Carefully check the labeling on the eye mask to see if there is any hidden manufacturer's information, such as contact information and address.
2. Search on the Internet: Try searching for the brand or model of the eye mask on the Internet to see if you can find relevant manufacturer information.
3, consult the purchasing channel: eye masks purchased through a particular purchasing channel, you can try to contact the customer service or after-sales department of the channel and ask them if they can provide the manufacturer's information.