We’re trying to develop a ton of smells enforcing the idea that everyone has a different relationship to it, and nothing is right or wrong. I think we’re working on using scent to communicate emotions and tell stories of people, culture and design. It’s a layer we’ve imagined can add a very intimate experience to this scale that IKEA works in.

— Ben Gorham of Byredo, talking about his collaboration with Ikea. Read more at IKEA X Byredo Will Transform Your Home's Signature Scent at Lonny. More information, but not much, can be found at Vogue UK, which says they will create “new ways of adding scents in your home”, but you won't see the products for 2 more years. Update: and here's the announcement at Ikea, which includes a short video.