Rituparna Sengupta
In the recent Union Budget 2026-27, allocation under the pollution control head declined to Rs 1,091 crore from last year’s revised estimate of Rs 1,300 crore, with outlays for key institutions such as the Central Pollution Control Board and the Commission for Air Quality Management. With public investment in pollution abatement remaining constrained, managing everyday exposure is increasingly taking the form of a private necessity rather than being reliably secured through public provision.
In India, pollution is emerging as an expanding private growth sector. As air quality worsens and access to safe water remains uneven, a parallel market has developed to provide protection from environmental exposure. Air purifiers, water purifiers, N95 masks, indoor air-quality monitors, filtration services and associated startups together constitute what can be described as a pollution economy: an ecosystem in which environmental degradation is translated into private consumption and revenue generation.
The air purifier market offers a clear illustration of how a limited, niche product has expanded into a large consumer segment. Until about a decade ago, air purifiers were largely confined to a small group of upper-middle-class households. They are now widely purchased across many Indian cities, particularly during high-pollution months.
According to market estimates, India’s air purifier market that is valued at around Rs 1,266 crore in 2025, is projected to grow to Rs 3,454.5 crore by 2033. Unit sales point to the same trend: Over 1 million air purifiers were sold in 2024, with volumes expected to increase several-fold. Demand is concentrated in North India, especially the Delhi NCR region, is strongly seasonal during peak pollution months and is dominated by portable units using HEPA filtration.
Both indoor air-quality monitoring segment and the industrial pollution control systems market in India are expanding in response to worsening air pollution and regulatory pressure, shaped by rising public awareness, smart city tracking initiatives and increasing compliance requirements. Together, these markets show how persistent pollution continues to generate demand for monitoring and compliance equipment with widespread, long-term exposure.
Declining confidence in tap water, groundwater contamination and uneven public treatment and distribution systems have made household purification nearly standard in urban and peri-urban areas. The water purifier market, already valued in billions of dollars, continues to grow at double-digit rates. Seasonal disease risk reinforces this trend. During the monsoon, when concerns over waterborne illnesses increase, purifier sales rise sharply, indicating that these devices are increasingly treated as essential household infrastructure.
Smaller defensive goods also play a significant role. Sales of N95 masks increase during pollution peaks, particularly in metropolitan centres. Air and water purifier filters require regular replacement, creating recurring costs that many households absorb as routine expenditure. For middle-class families, annual spending on purification devices, filters and masks can amount to several thousand rupees. For lower-income households, these costs are often out of reach. This retail growth is supported by a widening industrial and startup ecosystem. Health-tech companies are increasingly framing pollution exposure as a measurable risk and encouraging households to adopt protective behaviours. Startups and tech companies are also increasingly riding the pollution wave through a range of innovations, from personal exposure monitoring and health analytics to data platforms and smart sensing tools.
The recent emergence of wearable and portable air-pollution devices in India is one visible expression of this broader tech-driven turn toward individualised pollution management.
From an economic perspective, this expansion represents defensive expenditure: spending undertaken not to improve wellbeing, but to offset harm. While such consumption may contribute to the market’s growth, it reflects the costs of environmental failure rather than genuine gains in welfare. Long-standing approaches to green accounting argue that these expenditures should be treated as losses, not growth.
The pollution economy is also deeply unequal. Affluent households can afford layers of protection through devices, sealed buildings and private healthcare while lower-income communities are more likely to live near pollution sources and have fewer resources to mitigate exposure or access treatment, bearing a disproportionate burden of environmental harm.