Sabzpoost: Clean Air Technology
High-performance photocatalytic coating engineered to purify air and promote environmental sustainability in urban and industrial spaces
Air Quality Crisis in Urban Environments
Urban and industrial environments face a persistent air quality crisis: volatile organic compounds (VOCs) at 500 ppb in city centers, nitrogen oxides (NOx) at 40 µg/m³ in industrial zones, and particulate matter (PM2.5) averaging 25 µg/m³ annually—all exceeding WHO guidelines by 2-3 times.
These pollutants contribute to 7 million premature deaths yearly, per WHO data. Urban universities and factories struggle with indoor air quality, where VOC levels can spike to 1,000 ppb during peak occupancy. Traditional air filtration systems consume 1 kWh/m² daily and fail to address surface-level pollutant breakdown.
Annually from air pollution (WHO)
Typical urban pollution levels exceed standards
Traditional filtration systems
What is Sabzpoost?
Advanced photocatalytic coating technology that actively degrades pollutants under ambient light
Photocatalytic Layer
Anatase-phase TiO₂ with 5% doping for enhanced light absorption under ambient conditions (300-500 lux)
Nanoparticle Matrix
95% uniformity in dispersion with 20 nm average particle size, ensuring consistent reactivity across surfaces
IoT Monitoring
Real-time sensors measuring VOC, NOx, and PM2.5 levels at 1 Hz for data-driven air quality management
Durable Substrate
Silica-based protective layer ensures 10-year operational life under standard urban conditions
How Sabzpoost Works
Photocatalytic Reaction
Under ambient light, TiO₂ nanoparticles (bandgap 3.2 eV) generate electron-hole pairs, producing reactive oxygen species (ROS) that degrade VOCs like formaldehyde at 0.1 µmol/m²/s. NOx is reduced to nitrates at 0.08 µmol/m²/s with 90% efficiency under 400 lux.
Nanoparticle Dispersion
Sol-gel coating process ensures 95% uniformity across 1 m² surfaces. The 20 nm particle size maximizes surface area (50 m²/g) for reaction sites, yielding 40% higher degradation rates than commercial TiO₂ coatings.
IoT Integration
Embedded sensors (10 per m²) measure VOC, NOx, and PM2.5 at 1 Hz, transmitting data via MQTT to a cloud platform. The system logs a 50 ppb drop in VOCs within 2 hours of activation in a 100 m² test room.
Durability Engineering
The coating withstands 10,000 hours of UV exposure (equivalent to 5 years in urban conditions) with only 5% degradation in photocatalytic activity, thanks to a protective silica-based layer.
Energy Efficiency
Unlike traditional air purifiers (1 kWh/m² daily), Sabzpoost operates passively under ambient light, reducing energy use by 80% for equivalent air quality improvements while eliminating filter replacement costs.
Proven Performance
VOC reduction from 500 ppb to 300 ppb in 100 m² lecture hall over 4 hours
Decreases nitrogen oxides from 40 µg/m³ to 26 µg/m³ in real-world testing
Lower consumption vs HEPA filtration, saving 0.8 kWh/m² daily
Annual pollution impact reduction per 1,000 m² through decreased energy use
Active Degradation
Unlike filters that trap pollutants, Sabzpoost breaks them down at the molecular level into CO₂ and H₂O.
No Maintenance
Eliminates filter replacement costs and maintenance schedules with 10-year operational life.
Data-Driven Management
IoT integration provides real-time air quality data, enabling proactive facility management.
Beyond Traditional Filtration
Conventional air purification systems trap pollutants in filters that require regular replacement and consume significant energy. Sabzpoost represents a fundamental paradigm shift: instead of capturing pollutants, it destroys them through photocatalytic reactions powered by ambient light.
This approach delivers multiple benefits: zero filter replacement costs, 80% lower energy consumption, and continuous air quality improvement without maintenance intervention. The integrated IoT sensors provide facility managers with actionable data—for example, automatically adjusting ventilation when VOCs exceed 400 ppb.
Target Environments
University Facilities
Improve air quality in lecture halls, laboratories, and dormitories while reducing energy costs and maintenance burden.
Industrial Buildings
Address high VOC and NOx levels in manufacturing facilities, warehouses, and industrial offices with passive purification.
Urban Architecture
Integrate into smart building designs for sustainable air quality management in commercial and residential spaces.
Research Platforms
Serve as testbed for photocatalysis, materials science, and IoT research with validated real-world performance data.
Advancing Air Quality Research
Sabzpoost is designed for organizations aiming to improve air quality and reduce energy costs while modernizing infrastructure. GreenTouch invites collaboration with researchers in photocatalysis, materials science, and IoT systems, as well as industry partners in sustainable building design.
We're particularly interested in partnerships to further enhance Sabzpoost's scalability and application in smart cities, expanding the technology's impact on urban air quality and public health.
Transform Your Indoor Air Quality
Deploy Sabzpoost for sustainable, energy-efficient air purification