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Altruist in Thailand: a photo set

10 September 2026 • 4 min read

  • altruist
  • thailand
  • bangkok
  • koh-phangan
  • photo

An air quality sensor spends its life in public, at head height, in weather. This is what that looks like: twenty-one frames of Altruist in Bangkok and on Koh Phangan, in the places whose air it measures.

No numbers in this post. We took a box of Altruists to Thailand and photographed them where they actually live — on columns and kerbs in Bangkok, on a scooter handlebar in the rain, on a white wall above the jungle on Koh Phangan.

At street level

A sensor is only honest about the air where it hangs. Ours spend their working life at roughly head height on a street: beside a traffic lane, under the skytrain, next to the awning you wait out a downpour under. That is the air in these frames — Sukhumvit, at the height where people breathe it.

A pink Altruist mounted on a column, the Sukhumvit 33 street sign behind itA blue Altruist on a kerbside wall with Bangkok traffic behind it

A blue Altruist standing on the pavement, pigeons resting under a tree behind it

A pink Altruist on a column above a street of parked motorbikesA pink Altruist on a column, monstera leaves and shopfronts behind it

A blue Altruist on a wall at dusk, the curved roof of a skytrain station behind it

The hat is not decoration

The cone on top is the first thing anyone asks about, and the answer is dull: tropical rain arrives sideways. The roof keeps the water off while leaving the air path open the whole way round. It has a second effect nobody planned for — the device reads as an object rather than as equipment. A small painted house on a pillar, which is roughly what it is.

A pink Altruist with a turquoise roof on a wet glass table, rain-blurred street behind it

A blue Altruist with an orange roof among large green leavesA blue Altruist half-hidden in creeping greenery, a Bangkok pavement behind it

A blue Altruist standing on a kerb against a dark wallA blue Altruist on weathered wooden boards with a fallen yellow leaf

After dark

Colour turns out to be the other half of the design. A grey box on a wall is infrastructure and nobody looks at it twice. A magenta one under shop lights gets asked about, and being asked about is how a citizen network grows.

A magenta Altruist on a column with warm evening shopfront light behind itClose view of a magenta Altruist against blurred evening neon

A magenta and a blue Altruist on two columns of the same walkwayA blue Altruist on a rail at night beside someone typing on a keyboard

And off the street

It does not have to be on a wall. A cube on a desk beside the map it feeds, a yellow one riding a scooter handlebar in the wet, a pink one on a white wall with the jungle filling the window.

A blue Altruist on a desk beside an open laptop showing the sensors.social mapA hand holding a tablet with the sensors.social map of the island, a pink Altruist on the wall above

A yellow Altruist clipped to the handlebar of a scooter in the rain

A pink Altruist mounted on a bamboo wallA pink Altruist on a white wall, green hillside and banana leaves beyond

A pink Altruist on a white wall with the jungle-covered hills of Koh Phangan behind

Bangkok is on the map now — you can open it here.

The island in the last frames has been reporting for a year. That story, with the whole archive behind it, is in Koh Phangan, one year on.