Indoor air is heavily polluted, much more so than outdoor air, but unfortunately it’s indoors that we spend most of our time. This pollution can have a real impact on health, which is why it’s necessary to treat it. To do this, various methods exist, including photocatalysis. Technopure is a French company that manufactures air purification equipment using this technology. Its devices were then tested under real-life conditions to prove their effectiveness and non-hazardousness. These two points have been validated by various criteria.