A breath of fresh air

In the winter after the first pandemic winter, a friend showed me a small device she carried like an amulet. It was the size of a matchbox, with a screen that glowed a cheerful, bureaucratic green when all was well and turned an accusatory orange when it wasn’t. It measured carbon dioxide, the modest gas we exhale as a by-product of being alive. In the right hands it became a proxy for something far more charged – how much of other people you were breathing in.

There is a particular kind of modern embarrassment that arrives with the sudden recognition of how long you have been ignoring something you were always immersed in. You can live for years in a city and only then realise that the sirens have been calibrating your nervous system the way sea air calibrates a sailor’s lungs. You can spend your life scrolling and only later discover that the shape of your attention is not entirely your own. Air is like that, only more basic. The pandemic taught us that we had been treating breathing as private when it is, in any meaningful sense, collective.

We have built a civilisation that understands water, electricity, and money as infrastructural. We make a drama of energy grids and supply chains. We argue about rail, housing, and broadband. We accept without much fuss that food can be regulated and that sewage must be. Yet air has tended to appear in public conversation as metaphor or nuisance, as poetry or pollution, as the stuff of slogans about “fresh air” and “clean air” rather than as a system with valves, ducts, costs, standards, inequalities, and politics. The device in my friend’s pocket was a kind of philosophical insult – a reminder that the most intimate act we perform is also the one most thoroughly mediated by architecture, labour, class, and policy, and that we have been living as if this mediation were natural.

The romance of modernity is often told as emancipation from nature into control. The great glass towers, the climate-controlled shopping centres, the windowless data centres humming with servers and chilled by refrigerated air – all of it suggests an escape from weather, season, accident. But the pandemic made a different truth briefly obvious. Indoors is not the opposite of outdoors. Indoors is a weather system, designed or neglected, financed, or bodged, shared by strangers whose fates are entangled by their lungs. The fact that we needed a catastrophe to notice this says something less flattering about us than about the catastrophe.

Air Pollution

If you want an earlier Australian lesson in how air becomes political, you could do worse than begin in late nineteenth-century Sydney, when the city’s swaggering boom carried its own atmosphere like a curse. Around Darling Harbour and Ultimo, industry didn’t just make fortunes, it made the sky, too, smoke, soot, the steady black exhalation of factories close enough to turn neighbourhood life into a kind of involuntary apprenticeship in grit. The people who lived nearest the yards and workshops, who worked the hardest and moved the least, were the ones who cooked in it, washed in it, raised children in it, and had no practical way to retreat from it. Complaints about “black smoke” were less a romance about “nature” than a blunt insistence that a modern city had no right to treat its working suburbs as ashtrays.

Before germs gained their authority, air was imagined as a moral substance. The miasma theory, with its “bad airs” rising from rotting matter, seems quaint only because we now treat bacteria and viruses as the proper villains. But miasma also encoded a social intuition – that illness followed poverty, that certain neighbourhoods were condemned by their conditions, that what people were forced to live among made them sick. Germ theory did not abolish this intuition so much as reframe it. Pathogens travel through air, people travel through neighbourhoods, infrastructure travels through budgets and indifference. When we congratulated ourselves on having replaced superstition with science, we kept the ethical problem and swapped the explanatory diagram.

Architecture absorbed these theories and turned them into rooms. Tuberculosis, the great slow killer of the nineteenth and early twentieth centuries, produced an aesthetic of air – the sanatorium with its balconies and recliners, the insistence on sunlight, rest, and cross-ventilation. A certain strand of modernism, at its best, took the public health imagination seriously. White walls, open plans, terraces, and windows were an attempt at hygiene through form. Le Corbusier’s love of light was never merely symbolic. It was also bacteriological, if sometimes crudely so. The modernist building wanted to be a device for producing health, and it flirted with the fantasy that health could be designed into a population.

Then came air-conditioning, which may be the most consequential cultural technology of the last century after antibiotics and television. Air-conditioning reorganised geography. It made certain climates economically viable in ways that would once have seemed absurd. It made the sealed office tower plausible, and along with it the corporate fantasy of a world that could be managed from behind glass. It altered the logic of cities, enabling skyscraper districts that function as vertical villages whose true life is the controlled interior. It also produced a new kind of social expectation – that comfort is a right and that discomfort is an injustice, even when discomfort is the human body registering its environment honestly.

If you have ever sat in a conference room in January, freezing under the ceiling vents while someone in a suit apologises for the “AC”, you have experienced a banal form of power. Comfort is never evenly distributed. Someone decides how cold the room should be. Someone maintains the system or does not. Someone pays. Someone else shivers. The pandemic extended that logic from comfort to safety. Someone decides whether windows can open. Someone chooses whether the building will invest in filtration. Someone writes the policy that calls an outbreak “unavoidable”. Someone else gets sick.

Pandemic Politics

The strange thing about our pandemic politics is how quickly air returned to metaphor. We argued about masks as symbols – of solidarity, of fear, of submission, of care. We argued about lockdowns and freedoms, about the state and the individual, about science and scepticism. These were serious arguments, and the stakes were not abstract. But the air itself, the medium, remained oddly secondary in the public imagination, despite the fact that airborne transmission was the core mechanism and ventilation one of the most straightforward mitigations. It is hard not to see in this a preference for drama over maintenance. Mask debates could be staged in parliament and on television. Ventilation requires procurement, building surveys, contractors, budgets, engineers, and the dull admission that the glamorous parts of modern life depend on unglamorous systems doing their jobs.

Part of the problem is that air is hard to narrate. A lockdown has a clear shape – you stay home, the streets empty, time thickens. A vaccine has a heroic story – laboratories, trials, needles, immunity. Ventilation has the narrative glamour of plumbing. Its successes are invisible, its failures diffuse. It is also, inconveniently, an admission that the boundary between bodies is more porous than liberal individualism likes to imagine. You can separate your opinions, your bank account, and your browsing history, you cannot separate your breath from the room you share with others. Air is a public good that behaves like an intimate secret.

The small CO₂ monitor makes that secret legible, but it does so in a peculiarly contemporary way – by turning the collective into a number. There is something comforting about a number, even when it indicts you. The orange screen offers a certainty that social judgement does not. It also offers a new kind of etiquette. People begin to negotiate rooms as they once negotiated noise. “Could we open a window?” becomes a request that carries moral weight. “Do you mind if I bring an air purifier?” is both consideration and accusation. Air is becoming, fitfully, a topic of manners.

But manners are always a kind of politics, and Australia has never been innocent about that. Public health here has a long habit of turning etiquette into enforcement, and enforcement into a little morality play about who counts as “clean” and who needs to be corrected. The early twentieth century’s anti-spitting campaigns weren’t just a sensible response to tuberculosis; they were also a way of policing bodies in public, aimed, in practice, at the rougher end of the city and the newly arrived, at the kinds of people whose presence the respectable classes wanted tidied up as much as their germs. The pandemic hauled the same tension back into view. When people barked at each other about masks on Sydney trains or in Melbourne trams, it wasn’t only a fight about droplets and rules, you could hear, under the immediate noise, the older Australian argument about who gets to set the standard for “proper” behaviour in public and who is expected to perform it, cheerfully and without complaint.

There is a temptation to treat all this as a temporary psychodrama, a weird season of history that will pass. Yet the conditions that made the pandemic so disruptive are not disappearing. If anything, they are thickening. Work has become more mobile and more precarious. Offices insist on “return” while also redesigning themselves as collaboration theatres, with fewer desks and more hot-desking, as if sharing surfaces and air were a charming social innovation rather than a biomedical experiment. The climate is heating, wildfires have turned “smoke season” into a familiar phrase in places that once considered it an exotic horror. The air outdoors is becoming less dependable, which increases the desire for sealed interiors, which increases energy use, which increases emissions, which worsens the outdoors. Even without pandemics, we are heading into an era when breathable air will be an increasingly explicit marker of inequality.

You can already see this inequality in miniature. In affluent homes and offices, air purifiers appear like tasteful furniture, their filters changed on schedule. In poorer housing, windows may be painted shut, mould blooms in corners, and the landlord’s solution to damp is a leaflet about “ventilation” that blames tenants for breathing. In schools, some classrooms have monitors and mechanical systems, others rely on a teacher cracking a window in August and hoping the children’s jumpers will be enough. When we speak of educational inequality, we still mostly mean class sizes and devices and exam preparation. We rarely mean the literal composition of the air the children breathe for seven hours a day, though it is hard to imagine a more fundamental educational input than oxygen and the absence of disease.

Moral Architecture

There is a long tradition of treating the built environment as a moral document. Engels wrote about housing as an expression of class power. Jane Jacobs treated footpaths as the grammar of urban life. More recently, writers have turned to infrastructure as the place where politics hides in plain sight – the water pipes, the roads, the cables, the algorithms. Air belongs to this tradition, but it has a special intimacy. It enters you. It becomes you, molecule by molecule, and then leaves you to join the shared atmosphere again. If you want a material metaphor for interdependence, you could do worse than breathing.

And yet modern political language, especially in its liberal forms, still struggles with this kind of interdependence. We are comfortable with externalities in economics as an abstract concept, but uncomfortable with their bodily immediacy. The smoke from someone else’s factory can be framed as a regulatory problem. The aerosols from someone else’s lungs feel like an intrusion. The pandemic forced us to confront the fact that the boundary between “self” and “other” is, in practice, negotiated through infrastructure. That negotiation was always there. We had simply outsourced it to habit.

What would it mean to treat air as civic infrastructure in the fullest sense? Not as a matter of crisis management but as a permanent element of public life, like clean water. It would mean that we stop regarding ventilation as an optional amenity and begin to see it as a baseline. It would mean that building codes and public procurement treat filtration and air exchange as seriously as they treat fire exits. It would mean that we accept that the right to breathe safely in shared spaces is a public duty. It would also mean, less comfortably, that we will have to decide who pays and who benefits, which is to say we will have to admit that air is political.

Air politics is not new, but our moment gives it a particular shape. The twentieth century dreamed of control through enclosure. The twenty-first is discovering that enclosure is never total, and that the costs of pretending otherwise are rising. There is a revealing contrast between two architectural fantasies. One is the sealed tower, a vertical capsule that treats the street as scenery. The other is the glasshouse, the greenhouse, the biodome, which is a sealed world that admits, by its very existence, the fragility of the balance it depends on. The tower pretends it is merely efficient. The dome admits it is an experiment.

During the pandemic, we all lived in domes of a kind. Some were literal, like the plastic screens in shops, the Perspex barriers that turned every transaction into a visit to an aquarium. Others were social, like “bubbles”, that odd term that made households sound like soap and also like money. Bubbles were an attempt to redraw social space around contagion. They were also, in retrospect, an attempt to stabilise a moral world by turning messy relationships into manageable units. The fact that they often failed was not only because people are disobedient. It was because life does not organise itself neatly into policy categories, and because air does not respect the boundaries we draw with language.

The crucial shift in our understanding of contagion over the last few years was the popularisation, in fits and starts, of the idea that what matters is not only distance but shared air over time. This is, in a sense, an old idea, nineteenth-century hospitals were designed around it, with high ceilings and windows. But modern life had drifted away from it. We preferred the cleanliness of surfaces, the visible drama of wiping and sanitising, because it offered an illusion of control. Air is harder. It moves. It lingers. It makes the room itself morally suspect. If you accept that the room is a participant, you have to rethink much of modern sociability.

It is worth pausing on how strange this is culturally. We are, in other domains, obsessed with the invisible. We fret about radiation, about microplastics, about endocrine disruptors, about particulate matter. We buy water filters and obsess over ingredients. We accept that the unseen shapes health. Yet we were slow, as societies, to accept that the most obvious invisible substance of all, the air in the room, was central. Perhaps this is because air is also the medium of speech. To talk is to share breath. There is something psychologically difficult about treating conversation as a risk factor. It feels like a betrayal of what social life is for.

This is why the politics of air can easily become the politics of loneliness. One of the cruellest aspects of the pandemic was that it turned care into separation. To protect someone, you stayed away. The forms of solidarity we are used to, the gathering, the embrace, the crowd, became ambiguous. The air between people acquired a moral weight that could be exhausting. A culture already sliding towards atomisation found itself with a biomedical justification for staying apart.

Shared Spaces

And yet, if you look closely, you can also see the opposite – a renewed sense that shared spaces matter, and that their conditions are not fate. People began to ask what kind of air their children were breathing in school, which is to say they began to ask what kind of state they lived in. They began to ask why some workplaces were treated as dispensable bodies packed together while other workers could retreat to home offices. They began to ask why the burden of “risk management” was pushed onto individuals, as if one person’s choices could compensate for systems designed without them in mind.

The most interesting question is why so much of our response relied on individual behaviour in the first place. We told people to wash their hands and stay two metres apart, because those were actions that could be recommended without rewriting the world. We were slower to redesign buildings, because that requires collective investment and it implicates property, labour, profit. It is easier to moralise behaviour than to reform infrastructure. The pandemic gave us a case study in how governments and institutions prefer to manage crises – by outsourcing responsibility downwards while keeping the structural levers untouched.

This outsourcing has a familiar tone in other areas of contemporary life. When climate change is framed primarily as a matter of recycling and personal carbon footprints, rather than energy systems and industrial policy, we are watching the same move. When health is framed as a matter of “lifestyle choices” rather than food systems and inequality, the same. Air sits at the centre of this pattern because it is both deeply personal and unavoidably systemic. You can choose to wear a mask, but you cannot choose the ventilation rate of your train carriage. You can buy an air purifier, but you cannot buy your way out of outdoor smoke that blankets an entire region. You can stay home, but only if your job allows it and your home is safe. The rhetoric of choice collides with the physics of shared air.

The CO₂ monitor offers a number, and numbers feel like authority, but it also invites interpretation. A high reading means accumulated breath. It tells you that what you are doing in the room is sharing a medium that holds traces of everyone’s insides. It is a secular relic of interdependence.

What follows from that recognition depends on what kind of society you want. You could respond by retreating into private capsules, by purchasing better filters, by treating public life as a luxury you can no longer afford. This is already happening. The market will happily sell you safety, or at least the feeling of it. But if safety becomes a consumer good, then the air becomes another axis of class division. There is a dystopia here that is depressingly easy to imagine – the wealthy in sealed, filtered environments, the poor in crowded, stale rooms, the privileged attending events with “clean air certification” while others take their chances, the rise of an “aerial apartheid” that is invisible because it is literally the atmosphere.

You could also respond by treating air as a commons, a shared resource that must be managed fairly. This would require the kind of politics that modern societies often find hardest – politics of maintenance, of standards, of boring investment. It would require admitting that the freedom to breathe safely is not guaranteed by the absence of explicit coercion but by the presence of functioning systems. It would require, in short, a more infrastructural idea of liberty.

There is something appealingly unfashionable about this. Political debate in the last decade has been saturated with spectacle, with identity performance, with culture war. Meanwhile, the conditions of life have been quietly reorganised by systems that rarely produce viral footage – housing markets, logistics networks, epidemiological risk, climate volatility, server farms. The air is a perfect emblem of this shift. It is everywhere and hard to see. It is shaped by decisions made far from the places where it is breathed. It is, in its own way, a record of modern governance.

The question of how to write about it without turning it into another moral panic is not trivial. The pandemic already produced enough sanctimony to last a generation. Yet there is an argument here that is neither panic nor purity. It is the argument for making the basic conditions of shared life explicit, measurable, negotiable and fair. If the twentieth century pursued an ideal of freedom as private autonomy, the twenty-first may be forced to rediscover freedom as the collective management of dependencies. Breathing is an unusually stubborn dependency. You cannot opt out for long.

Living, Breathing Politics

One might object that to politicise air is to invite endless regulation and surveillance. The more we measure, the more we can police. The pandemic already offered glimpses of how easily public health can become an excuse for authoritarian habits. The alternative is unaccountable power – landlords and employers deciding conditions without oversight, and individuals blamed for outcomes they cannot control. The real question is who sets the standards, who enforces them, and whose interests they serve.

Air, in other words, is a matter of governance. It forces us to confront what we mean by public. A public is a set of bodies sharing space. Liberal democracies like to imagine publics as audiences, consuming information and making choices. The pandemic reminded us that publics are also respiratory communities.

Perhaps that is why the experience was so unsettling. It pressed the political back into the biological, undoing a century of polite separation between the two. It reminded us that the social contract is, in crowded rooms, a physical fact.

I sometimes think the most poignant image of the pandemic era was not the masked supermarket queue or the televised press conference but the open window in winter. The window is a humble technology, older than most political systems, and it returned as a symbol of sane pragmatism. Open the window, let the room breathe. There was something almost premodern about it, as if we had circled back past our elaborate systems to an older wisdom – that freshness matters and that enclosure has costs.

But the open window is also a reminder of inequality. Not everyone can open one. Many modern buildings don’t allow it. Many workplaces forbid it. Many people live in places where opening a window means letting in noise, smoke, pollution, or danger. The open window is a small utopian gesture that depends on a larger world being liveable.

Air deserves that scrutiny now. The pandemic was a shock, but it was also a revelation – a brief moment when it became possible to see, with unusual clarity, that our lives are organised by infrastructures that are moral whether we admit it or not.

We can forget this lesson, as we have forgotten so many others, and allow the air to slip back into metaphor. Or we can take it seriously and begin to build a culture in which breathable shared spaces are treated as a baseline, in which the dull competence of ventilation is valued as much as the theatricality of policy, in which the conditions of breathing are not left to the market and the accident of postcode.

The CO₂ monitor in my friend’s pocket was a prompt, a small insistence that the room was not neutral and that togetherness had a physics. It told you, quietly and relentlessly, that whatever society you had will be inhaled.