When governments around Europe told people to create a "bubble" to limit their social contacts during the Covid-19 pandemic, this was probably not what they had in mind.
Alain Verschueren, a Belgian artist and social worker, has been strolling through the capital Brussels wearing a "portable oasis" - a plexiglass mini-greenhouse which rests on his shoulders, cocooning him in a bubble of air purified by the aromatic plants inside.
Verschueren, 61, developed the idea 15 years ago, inspired by the lush oases in Tunisia where he had previously worked.
In a city where face coverings are mandatory to curb the spread of Covid-19, his invention has gained a new lease of life.
"It was about creating a bubble in which I could lock myself in, to cut myself off a world that I found too dull, too noisy or smelly," Verschueren said, adding that he has asthma and finds breathing within his contraption more comfortable than wearing a facemask.
"As time went by, I noticed that people were coming up to me and talking to me. This isolation became much more a way of connecting," he said.
Onlookers in Brussels appeared amused and confused by the man wandering between the shops - mostly closed due to Covid-19 restrictions - encased in a pod of thyme, rosemary and lavender plants.
"Is it a greenhouse? Is it for the bees? Is it for the plants? We don't know, but it's a good idea," Charlie Elkiess, a retired jeweller, told Reuters.
Verschueren said he hoped to encourage people to take better care of the environment, to reduce the need to protect ourselves from air and noise pollution.
