Relieved Case / Storage Box

Problems:
Food are not easy to stay fresh due to the temperature and humidity nowadays.
Spoiled food can be poisoned if people mistakenly eat them.
Storage case can keep the food in better condition,
but not able to show the freshness of food.
Feature:
Relieved Case is equipped with freshness censor on the lid,
which is germ and smell censor.
Food store inside Relieved Case will be censored frequently to ensure freshness.
On the top of the lid installed LED indicator,
the green light mean the food is in good condition and the red light mean the food is spoiled and need to be discarded.