Scientists create VR headset that lets users ‘smell’ games and movies

Scientists from Bei hang University and the City University of Hong Kong have presented distinct designs of two devices that emit smell when playing games or watching movies. The first format is a wearable gadget that is placed directly beneath the nose on the skin. The wearable device has the capability to produce two different scents.

Both devices incorporate scented wax, which can be rapidly heated within approximately 1.5 seconds. The researchers successfully generated a total of 30 distinct scents, like rosemary, mojito, pancake, pineapple, and durian. Although current virtual reality headsets can replicate visual, auditory, and tactile experiences, the realm of virtual worlds still lacks the sense of smell.

The researchers envision their technology as a solution to this problem, aiming to enhance the immersive user experience in video games, they also suggested possibilities such as utilizing scents as an alternative form of communication or to evoke memories. 

Researchers from Bei hang University and the City University of Hong Kong conducted experiments involving 11 volunteers to explore the potential of two wireless VR systems capable of producing scents. In addition, they explored more abstract scents such as “walking outside,” “happiness,” and “having a lunch.” However, it was observed that scents with lower boiling points were the most effective in achieving the desired results.