According to the World Health Organization (WHO), air pollution is one of the biggest environmental health risks on the planet, leading to millions of deaths annually. The problem is more alarming for those us living in cities, so much so that air-purifiers are expected to become a household essential. The world’s biggest provider of furniture, IKEA, has a different solution. They have come up with curtains that can block light and purify the air in your home. The air-purifying curtains that are treated with a mineral that causes air pollution to break down when light shines through it, allowing users to purify the air in their own homes. The technology works in a similar way to photosynthesis, requiring only light for it to work.