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Pureva adsorber installed on the flue of a resin plant

Pureva installed on the flue of Romit Resins, Pali, Maharashtra, July 2024

Mission Zero Emission

Air pollution control for stacks, junctions, kitchens and homes.

Five systems built around one patented adsorbent that binds SO₂, NOx, CO and CO₂, the gases filters let through. Running at a resin plant since 2024, in pilot at a pizzeria and in homes, with a hotspot-tower pilot unit in fabrication.

  • Top 100 StartupsMaharashtra Startup Week 2025 · Govt of Maharashtra
  • Patented adsorbentIndian Patent No. 468407, granted 2023
  • AIC-RMP incubatedAtal Incubation Centre, Thane
  • 30 years in analytical chemistryFounder, Prof. (Dr.) Anjali Puranik
  • Installed since July 2024Pureva at Romit Resins, Pali, Maharashtra

One powder, five machines

The adsorbent is a dry powder. Gas binds to it on contact and the spent powder is swapped on a schedule. Each system is built around it for its site.

  1. SuVayu 25KOutdoor hotspot air-cleaning towerPilot unit in fabrication
  2. SuVayu 2KIn-duct clean-air unit for hospitals, malls and campusesDesign stage
  3. SuVayu-BakeEmission control for wood-fired ovens, tandoors and grillsPilot installed · May 2026
  4. AirovaClean-air add-on for split air conditionersHome pilots · 2026
  5. PurevaDry adsorption tower for industrial flue gasInstalled · Romit Resins, 2024
SuVayu 25K tower concept at a bus terminal Concept render

A modular tower for traffic junctions and bus terminals. It draws 25,000 CFM (42,500 m³/h), removes particulates and gases, and returns the air at breathing height.

25,000 CFM (42,500 m³/h) hotspot tower. 10K pilot unit in fabrication.

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SuVayu units beside a hospital building, concept Concept render

A 2,000 CFM (3,400 m³/h) unit fitted in the return duct of an existing air-handling unit. It treats particles, gases and microbes without HEPA filters.

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SuVayu-Bake unit installed beside a wood-fired pizza oven

A compact unit on the oven exhaust that captures soot, ash and smoke from wood-fired ovens and tandoors. No civil work. Built for outlets answering smoke complaints and notices.

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Split air conditioner fitted with the Airova add-on showing a low AQI reading Concept render

An add-on panel for the indoor unit of a split AC. The AC’s own fan pushes room air through it. No new appliance, no floor space.

Explore Airova →
Pureva adsorber installed on the flue of a resin plant

A dry adsorption tower for boiler and furnace flues. The patented adsorbent binds SO₂, NOx, CO and CO₂. No water, no effluent, no high voltage.

Explore Pureva →

Filters stop the particles. The powder binds the gases.

Filters take out dust and PM2.5. The adsorbent binds acid gases and carbon oxides, dry, with no water or effluent.

Pureva commissioning at Romit Resins
Pureva commissioning, Romit Resins, Pali, July 2024

From the founder

“Existing pollution-control methods are costly and inefficient, and clean fuels alone are not enough. We spent thirty years in analytical chemistry learning what flue gas is made of. Bhagirath exists to take it out of the air at a price a small plant or a city can actually pay.”
Prof. Anjali Sudhir Puranik
Prof. (Dr.) Anjali Sudhir PuranikFounder & Director · Ph.D. Chemistry

Tell us about your site

Send a stack report, a photo of the oven, or the AC model and room size. We reply within two working days with a sizing and what we would measure.