Greenairy's Smart Plant Towers Aim to Cut Office VOCs
Tanvi Thombre and Lakshya Saraf founded Greenairy, a startup whose plant towers draw in indoor air, break down toxic gases with biology, and release cleaner air. The company will appear at TechCrunch Disrupt as part of the Startup Battlefield 200. TechCrunch
The system is built for offices. On its website, Greenairy calls it the world's first smart plant tower that eliminates indoor toxic gases through bio-filtration, or filtering with living plants and microbes, and says it is designed for the modern workplace. Greenairy The approach is described elsewhere as combining IoT technology, or networked sensors and controls, with nature to improve indoor air quality. Springwise Greenairy Pte Ltd also has a company profile on TechCrunch's Startup Battlefield site.
Deployment so far is thin. Greenairy has run short-term pilots at locations around Singapore. TechCrunch
The core claim concerns volatile organic compounds, or VOCs, chemicals released by paints, cleaners, furniture and fragrances that collect indoors. Greenairy says testing with RESET-certified air monitors, a standard for sensor accuracy, recorded a 50% reduction in both the daily VOC average and peak levels during regular office hours. German testing firm TÜV SÜD validated those results. TechCrunch
The broader context here is how indoor air hardware earns trust. RESET certification covers the monitors that took the readings, not Greenairy itself. That provides a reliable baseline without settling questions about test protocol, room volume, ventilation rate, occupancy, or placement of towers relative to sensors. Office-hours timing matters too. VOC loads follow occupancy, cleaning cycles and HVAC schedules, so daytime averages help facilities teams but say little about overnight off-gassing, weekend buildup and saturation over time.
Looking at what this means for building operators, the IoT part will carry much of the weight. A living filter is not a fit-and-forget HEPA cartridge. Plants, root-zone microbes, airflow, moisture and nutrients all drift. Continuous data on airflow, pollutants in and out, and biological health would separate a decorative tower from a managed air-quality asset. At scale, the link is not the lobby. It is the building management system, maintenance tickets, and auditable logs a workplace or safety lead can compare with complaints, absenteeism signals or energy controls.
In my view, the hybrid premise deserves attention even while evidence is early. Mechanical purification is tuned for capture efficiency without blocking airflow. Bio-filtration is tuned to digest gases that carbon and particle stages handle poorly or expensively. If the 50% VOC cut holds across longer runs, varied floor plates and normal HVAC operation, the payoff is practical. Offices could address formaldehyde, solvents and fragrances without forcing more outdoor air and more energy through the air handler. Short pilots cannot answer that yet. Long, instrumented use in occupied offices can.
