In food manufacturing industries, workers are often required to wear earplugs to protect their hearings, but sometimes, the earplugs might fall into the food to contaminate the food and often it is difficult to be detected. This metal detectable earplug has enclosed metal ball and metal-chips enclosed cord, which is detectable for metal and magnetism, under this condition, if any metal earplug falls into the food, it can be detected, besides, the disposable PU earplug has a cord to avoid falling of earplugs and when unused, it can be hung around the neck.
The disposable PU earplug is made of foam, which is perfectly match with the auricle, the enclosed metal ball inside the earplug is available in automatic and easy detection of nonferrous metal ball. The soft foam earplug, after being plugged in the ear, can expand slightly and adjust itself to fit the ear canals, providing comfort all the day. The light blue color can be easily recognized in the automatic detection process.
