In 2021, clean-air activists Choked Up put up hacked road signs in the London neighbourhoods of Catford, Brixton and Whitechapel. The signs stated: ‘People of colour are more likely to live in an area with illegal pollution levels’. They also demanded ‘Clean air for all’. The following year, Breathe: 2022 by artist Dryden Goodwin was installed across the borough of Lewisham. Depicting people struggling to breathe, like the road signs, the delicate pencil-drawn images were a way of ‘making the invisible visible’. These interventions highlight both the elevated levels of air pollution in particular locations and the unevenness of its distribution. They also point to how places and bodies are interconnected in the air that ‘we’ breathe. Foregrounding this activism, this article draws on Nirmal Puwar’s conceptualisation of the ‘somatic norm’ whereby particular spaces are (or, rather, become) ‘reserved’ for particular bodies and, concomitantly, the ‘ontological anxiety’ provoked when bodies enter into spaces not meant for them. I extend Puwar’s work on Space Invaders in two ways. First, reading air quality research data through work which has theorised the spatial–bodily relationship, the article explores how the yoking together of spaces and bodies can serve to locate people in places which are not fit for habitation. Second, I draw attention to the highly corporeal and emotional ways in which these interconnections are manifested, and like the visceral registers of ‘ontological anxiety’, I consider what this might tell us about spatialised and bodied power relations. To render the asymmetries in air pollution exposure not only visible but sense-able, the article draws on a mobile, emplaced and embodied methodology of walking and cycling through London. The processes of moving, breathing and leaving put into relief both the deep fleshiness of spatial–bodily interconnections and the palpability of the power dynamics which permeate them.