Airth (Airth Research Private Limited) is a New Delhi-based Indian startup founded in 2020 that makes antimicrobial air purifier modules which attach to existing air conditioners using coated HEPA filters.

This Startup Deep Dive explains what Airth does, how it makes money, who backs it, how it compares with rivals and what could go wrong, using publicly available information. It is educational and not investment advice. Last updated: October 2026.

Airth in Brief

• What it is: Airth is an Indian Cleantech / air purification company based in New Delhi.
• Who it serves: businesses, institutions, consumers, learners and public-sector buyers.
• Makes an AC air purifier module that attaches to existing air conditioners.
• Uses antimicrobial-coated HEPA filters designed for low power use.
• Sells to homes and businesses seeking cleaner indoor air.
• Funding: About $116,000 to $316,000 depending on source (reports differ).

Airth Quick Facts

Figures marked “reported” come from published reports and may differ between sources; “Not disclosed” means no reliable public figure was found.

What Is Airth?

Airth operates in the Cleantech / air purification space in India. Understanding a company like this starts with three questions: who is the customer, what painful problem is being solved, and why the solution is better than the alternatives. The sections below apply that lens to Airth.

• Makes an AC air purifier module that attaches to existing air conditioners.
• Uses antimicrobial-coated HEPA filters designed for low power use.
• Sells to homes and businesses seeking cleaner indoor air.

The Origin Story of Airth

Every company starts from a noticed gap and a team willing to commit to closing it. Strong origin stories are specific: a clear problem, a founding team with relevant skills, and an early product that real customers could test. Founder-market fit, meaning the team’s lived experience or technical depth in the domain, tends to predict how fast a young company learns.

• Founders: Abhimanyu Kumar, Ravi Kaushik, Birendra Rajan, Pushaan Singh.
• Founded in 2020 in New Delhi as Airth Research Private Limited.
• Co-founders named by aggregators include Abhimanyu Kumar, Ravi Kaushik, Birendra Rajan and Pushaan Singh.
• Pre-seed funding in Sept 2020 with an AIM Smart City-linked investor named.
• Reported R&D collaborations with IIT Kanpur, IIT Bombay and IISc Bangalore.

Key Milestones and Challenges

No startup grows in a straight line. Early years usually involve slow adoption, product rewrites, hiring mistakes and funding gaps. In the Cleantech / air purification sector the common turning points are a first paying customer, a regulatory approval, a successful product demonstration or a funding round that lets the team invest ahead of demand. How a team responds to setbacks says more about resilience than any single headline.

• Sept 2020: Pre-seed round reported.
• Oct 2021: Seed round with IIT Kanpur's incubator, Whiteboard Capital and others named as investors.
• FY24: Revenue about Rs 2.1 crore.
• Jan 2025: Further round dated by aggregators (amount not disclosed).
• FY25: Revenue about Rs 5.9 crore.

Airth Funding and Investors

Funding history shows how much outside confidence a company has attracted and how long it can operate before needing more capital. Figures below are reported and may differ between sources; valuation figures are estimates unless the company has confirmed them.

• Sept 2020: Pre-seed, AIM Smart City named; amount undisclosed.
• Oct 2021: Seed round; investors named include IIT Kanpur's incubator, Whiteboard Capital, Syrma, Action For India; amount not shown.
• Jan 2025: Round of undisclosed amount; total across rounds reported at about $116,000 to $316,000.

How Does Airth Make Money? (Business Model)

A business model describes who pays, how often and how much it costs to serve them. Strong models show repeat usage, improving margins with scale and acquisition channels that do not depend only on paid spend. Weak models show one-off sales, rising costs and growth that stops when spending stops. For companies selling to businesses, institutions, consumers, learners and public-sector buyers, sales cycles and contract size matter as much as headline growth.

• Hardware sales to consumers, with a hardware-plus-subscription option listed.
• Product designed as a retrofit to existing AC units rather than a standalone purifier.

The Numbers: Airth Financials

Financial figures show whether growth is turning into a self-sustaining business. Small and private companies often disclose little, so any number below is included only if it was found in public reporting.

• FY24 revenue about Rs 2.1 crore with a loss after tax of about Rs 44 lakh (aggregator).
• FY25 revenue about Rs 5.9 crore, up about 176.9% (aggregator); FY25 profit/loss not stated.
• Employee count reported as 20 or 36 depending on page.

Market Opportunity for Airth

Market size is easy to exaggerate, so a useful approach separates the total market from the portion a company can realistically reach with its current product and distribution. The main forces behind demand in this sector are rising digital adoption, cloud and mobile penetration, growing enterprise technology spending, government digitisation programmes and a deep pool of engineering talent. Each of these widens the opportunity, but capital efficiency and execution decide who captures it.

• Indoor air quality demand in Indian cities with high pollution.
• Large installed base of air conditioners gives a retrofit opportunity.

Technology and Product at Airth

Technology is rarely the whole moat, but it drives speed, cost and customer experience. A practical way to assess it is to separate the capability the company controls from the commodity infrastructure it rents. In this sector the important factors are product quality, data and integration depth, security, scalability and the speed of shipping improvements.

• Antimicrobial coated HEPA filtration module that works with the AC airflow.
• Academic R&D links with IIT Kanpur, IIT Bombay and IISc Bangalore.

Team and Culture at Airth

Teams are the most important and least measurable asset of a young company. Look at how complementary the founders’ skills are, how deep the second layer of leadership is, and how the company hires and retains specialists. Culture shows up in small repeated behaviours: how quickly bad news travels upward and whether commitments to customers are kept.

• Abhimanyu Kumar and Ravi Kaushik most consistently named as co-founders.
• About 20 to 36 employees (reports differ).

Airth Competitors: Competitive Landscape

A fair competitive analysis names direct rivals, adjacent players who could move into the space, and the customer’s default alternative. Durable advantages include proprietary data or technology, licences and approvals, brand trust, switching costs and cost leadership.

Risks and Challenges for Airth

• Very small funding base compared with established purifier brands.
• Product depends on compatibility with existing AC units.
• Reported financials come from aggregators and are inconsistent.
• Competitor list is similarity-based, not a verified rival set.
• Competition: low barriers to entry and well-funded rivals can compress pricing and slow growth.
• Funding risk: technology businesses often burn cash before reaching profit and depend on investor appetite.

Risk is not a reason to avoid a company; it is a reason to price it correctly and to monitor the right indicators over time. Regulation in this sector is shaped by data protection rules under the Digital Personal Data Protection Act, sector regulators, consumer protection law and IT rules.

Airth Growth Outlook: What to Watch

• Revenue nearly tripled in FY25 per the aggregator, suggesting early traction.
• No larger institutional round found in sources read.
• Key indicators: recurring revenue, customer retention, gross margin, customer acquisition cost and runway.
• Funding position: Whether Airth can reach its next milestone before needing new capital.
• Regulation: Changes from data protection rules under the Digital Personal Data Protection Act, sector regulators, consumer protection law and IT rules.

Industry Context: Where Airth Fits

India's technology startup ecosystem is one of the largest in the world, supported by cheap data, a large base of smartphone users, digital public infrastructure and a deep engineering talent pool. Companies now build for education, software, mobility, logistics, agriculture, defence, media and more, selling both to Indian customers and abroad.

Durable technology companies usually combine a clear customer problem with repeatable distribution and disciplined unit economics. Growth funded only by spending tends to fade, while products that customers keep using and paying for build compounding advantages.

For readers new to this field, a useful habit is to separate announcements from evidence. A plan, a partnership or a funding headline describes intent, while a delivered product, a paying customer or an audited financial statement describes results. Comparing the two over time shows how reliably a company turns promises into outcomes.

Bull Case and Bear Case for Airth

An investment thesis is a short, testable statement of why a company could become far more valuable, together with what evidence would prove it wrong. The points below are general to this sector and are not forecasts for Airth.

Bull case

• A large and growing base of digital users and businesses expands the addressable market.
• Recurring revenue and strong retention can compound growth.
• Selling into global markets widens the opportunity beyond India.

Bear case

• Heavy competition can compress pricing and margins.
• Dependence on external funding can force painful cost cuts.
• Regulation or platform changes can disrupt a product quickly.

Lessons Founders and Investors Can Take from Airth

Studying a company in the Cleantech / air purification space offers lessons that go beyond any single firm. The points below are general lessons for the sector and are not claims about Airth.

• Solving a clear, frequent customer problem matters more than adding features.
• Retention and repeat usage are better health signals than sign-ups.
• Disciplined spending extends runway and keeps options open when funding tightens.
• Distribution, not just product quality, decides who wins in crowded markets.
• Building trust through data protection and reliability is part of the product.

How to Evaluate Airth as a Startup

• Customer clarity: Can Airth name its customer and the problem it solves in one sentence?
• Evidence of demand: Look for repeat customers, signed contracts or measurable usage rather than announcements alone.
• Economics: Check whether margins improve as volume grows.
• Execution: Compare announced timelines with what has actually been delivered.
• Funding runway: Estimate how long current capital lasts at the present spending rate.
• Regulatory standing: Confirm required approvals are in place.
• Customer concentration: Check whether a few customers account for most of the revenue.
• Management depth: Look for experienced leaders beyond the founders and a stable core team.

The Takeaway

Airth is part of India’s growing Cleantech / air purification ecosystem. The useful lesson from studying it is the discipline of asking structured questions about customers, economics, advantage and resilience. Companies that answer them well, repeatedly and under pressure are the ones that endure. Readers should treat any single report, ranking or funding headline as one input among many, and should re-check key facts against recent company announcements. Because public information on young companies is often limited, patience in verifying claims is part of good analysis. Public sources can also describe the same company in different ways, so it is worth checking dates, definitions and whether a figure refers to revenue, total income or transaction value, and whether it covers one entity or a wider group, before drawing conclusions. Small differences in rounding, currency conversion or reporting periods can also change how a figure reads. Comparing the same figure across several recent reports helps show whether it is stable or has changed over time. This article is educational and is not investment advice.

• Clear customers and repeat demand matter more than announcements.
• Regulation and capital needs shape how fast a startup in this sector can grow.
• Track a few leading indicators over time rather than one headline metric.

Airth FAQs: Frequently Asked Questions

What is Airth?

AiRTH (Airth Research Private Limited) is a New Delhi-based Indian startup founded in 2020 that makes antimicrobial air purifier modules which attach to existing air conditioners using coated HEPA filters. It is profiled in the Startup Deep Dive series, which explains business model, funding, competitors and risks.

Who founded Airth?

Airth was founded by Abhimanyu Kumar, Ravi Kaushik, Birendra Rajan, Pushaan Singh, and the company reports a founding year of 2020.

How much funding has Airth raised?

About $116,000 to $316,000 depending on source (reports differ). Funding figures are reported and may differ between sources, so readers should check the latest company announcements.

How does Airth make money?

Airth earns revenue from its Cleantech / air purification products and services sold to businesses, institutions, consumers, learners and public-sector buyers. The exact revenue mix is described in the business model section and is not fully disclosed publicly.

Who are the competitors of Airth?

Reported rivals include Smart Air Filters, uBreath, YOGa Clean Air, Praan. See the competitor comparison above for how they differ.

What are the main risks for Airth?

Main risks include competition: low barriers to entry and well-funded rivals can compress pricing and slow growth, funding and capital needs, competition and regulation by data protection rules under the Digital Personal Data Protection Act, sector regulators, consumer protection law and IT rules. This is educational content, not investment advice.

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Source

Source: Publicly available data, published reports, industry research, and other credible sources.