What we have measured, and how
Readings by our team with handheld analysers, each with its date, site and photo. Independent monitoring under a written protocol is part of every pilot proposal; new results are added here.
Pureva
Romit Resins Pvt Ltd, July 2024
First Pureva adsorber, on the flue of a resin plant in Pali, Maharashtra. Handheld flue-gas analyser at inlet and outlet on three days, same charge of adsorbent.
Handheld flue-gas analyser; values as displayed on the instrument.
| Date, time | Point | O₂ % | CO₂ % | CO ppm | SO₂ ppm | NO₂ ppm | NO ppm |
|---|---|---|---|---|---|---|---|
| 3 Jul 2024, 22:49 | Before adsorber | 13.5 | 7.3 | 629 | 31 | 0 | 77 |
| 3 Jul 2024, 22:53 | After adsorber | 19.9 | 1.0 | 226 | 10 | 0 | 11 |
| 4 Jul 2024, 13:44 | Before adsorber | 15.4 | 5.3 | 442 | 13 | 0 | 41 |
| 4 Jul 2024, 13:53 | After adsorber | 20.9 | 0.0 | 1 | 1 | 0 | 0 |
| 15 Jul 2024, 13:45 | Inlet | 15.3 | 5.6 | 469 | 14 | 0 | 50 |
Values as displayed on the instrument; 0 and 0.0 mean below its resolution. Outlet O₂ is shown as read.
SuVayu-Bake
Wood-fired pizza oven, 14 May 2026
First unit, above a wood-fired oven. Handheld PM/CO₂ meter at the exhaust: unit bypassed, then unit in line, six minutes apart.
One spot reading by our team. The next installations are measured under a written before/after protocol.
Timeline
Pureva installed at Romit Resins, Pali
First industrial adsorber on a live flue. Before/after readings on 3, 4 and 15 July.
Two-month saturation series
One charge of adsorbent monitored until removal fell from 100 % to 79–99 %, setting the service interval.
Top 100 Startups, Maharashtra Startup Week 2025
Recognised by the Maharashtra State Innovation Society, Government of Maharashtra.
Startup Mahakumbh, New Delhi
Presented the adsorbent and SuVayu concept at Bharat Mandapam.
SuVayu-Bake pilot in a pizzeria
PM2.5 at the exhaust from above the meter limit to 559 µg/m³ with the unit in line.
Airova home pilots and SuVayu 10K fabrication
AC add-on prototypes in homes; the 10,000 CFM pilot tower in fabrication; 90-day Delhi validation pilot proposed.
Protocol
How we run a pilot
The protocol written into every pilot proposal. One report for the host, the regulator and the sponsor.
Baseline
Unit off for the first days. Record normal pollution and peak periods at all measurement points.
Controlled on/off
Alternate operation under matched wind and traffic conditions. Measure at the intake, the discharge and at 1.5 m breathing height.
Continuous run
Assess stability, energy, noise and maintenance over the full period, typically 30 to 90 days.
Independent review
Third-party analysis of the dataset and a written scale-up recommendation against pre-agreed pass criteria.
Host or sponsor a pilot
Sites are being selected for SuVayu 10K, SuVayu 2K and the next Pureva installations. Hosts and sponsors get the full dataset and the independent report.