cigarette with heart filter packaging from different countries: 1. China 2. Japan 3. Norway 4. South Korea 5-6. Taiwan 7. North Korea 8. Thailand 9. Australia 10. United States 11 Switzerland 12 Mexico 13. England New fashionable filter : r/Cigarettes

This work, which stemmed from a collaboration between researchers at the KTH Royal Institute of Technology in Stockholm and the University of Illinois, and led by Richard Olsson and Mikael Hedenqvist, provides a proof-of-concept for synthesising filters from recycled PET to give cigarette filters which absorb up to 20 times more cigarette smoke than classic filter tips

Expensive cigarette brands like Panda and Zhonghua are commonly given as presents to bosses and parents and are offered as a welcoming gesture to house guests

Edelstein called the result "brilliant, tightly focused, and momentous." Click here to watch on Netflix

To construct this filter, they poke small holes in the bottom of a small plastic bottle and cut a hole in the top thats large enough to blow their smoke