Japan (AHN)- Japanese convenience store operator Seven-Eleven Japan announces it will make an entry into the rapidly expanding oxygen market, and begin selling cans of oxygen on May 24.

According to the RapidNewsWire.com report, oxygen has emerged as a popular new product and sparked the creation of city "oxygen bars" that provide oxygen for customers to breathe in.

As the first retailer among Japanese convenience stores and supermarkets to enter the so-called oxygen market, Seven-Eleven will sell small portable cans.

The idea behind the product is to allow buyers to replenish their oxygen levels anytime they feel a lack of it due to stress, fatigue, or other factors.

According to the report, a drop in the amount of oxygen in the body can make people start to yawn and sigh. Normal air contains only about 21 percent oxygen, but the oxygen concentration in the cans is 95 percent, and breathing it in can reportedly bring on a feeling of invigoration.