Intelligence that understands.
Systems that aromatize.

Grehni is building the intelligence layer for the world around us. We combine AI, data and real-world understanding to create systems that perceive, learn and enhance environments in real time.

AI-Powered Intelligence
Real-time Adaptation
Scalable Infrastructure
Human-Centric Design
Grehni — Live Overview
LIVE TELEMETRY
23°C
Indoor temperature · adjusted by AI
Auto-adjusted
based on your routine
Living room
3 devices active · Air quality optimal
Lights on 22°C
Bedroom
Sleep mode active · Ambient chill
Lights off 18°C
Kitchen
Motion detected · 4 min ago
Lights on 24°C
Aroma Diffuser Cluster
Calm Bergamot blend active
Aromatizing 45% flow
12k+
Environments connected
99.8%
System uptime
38%
Average energy reduction
2035
Our vision horizon

Intelligence for every space

From homes to hotels, retail to restaurants — Grehni's platform makes any environment perceive, adapt and respond.

Ambient intelligence engine

Our core AI processes thousands of environment signals per second — temperature, occupancy, behavior patterns — and acts without being asked. The space learns from you, not the other way around.

Live Sensor Telemetry
Temperature
72%
Occupancy
88%
Air quality
55%
Energy efficiency
41%

Real-time adaptation

Environments that respond to change as it happens — not on rigid schedules, but on live human reality.

Privacy by design

All processing stays local on edge clusters. No behavioral data ever leaves your private environment.

Universal integration

Works with 200+ hardware protocols and smart devices. Deploy on existing infrastructure — zero rip-and-replace required.

Zigbee Z-Wave Matter BACnet KNX MQTT Philips Hue Nest Modbus HomeKit

How Grehni thinks

1
Sense
Hundreds of sensors read the environment continuously — light, heat, motion, and ambient aroma density.
2
Understand
Our AI maps patterns, learns preferences, and builds a living model of the space and its people.
3
Act
The system adjusts, optimizes, and responds — automatically, instantly, and invisibly.
4
Evolve
Every interaction makes the intelligence sharper. The longer it runs, the better it gets.

The intelligence layer for the world

By 2035, every environment that people inhabit will be intelligent. Grehni is building the foundational layer that makes this possible — invisibly, reliably, and at scale.

1 billion intelligent environments worldwide
40% global reduction in building energy use
Spaces that know you before you arrive
To aromaticize the most hours of India

“We're not just building technology. We're building intelligence that elevates everyday human experiences across every space.”

Grehni Core Architecture · Antellay Labs
grehni-core v2.4.1
grehni sense --env living_room
Scanning 14 sensors...
Occupancy: 2 persons detected
Temp: 24.2°C → adjusting to 22°C
Lighting: shifting to evening mode
 
grehni learn --pattern weekly
Analyzing 7 days of behavior...
Pattern detected: movie night Fridays 9PM
Action: auto-configure on schedule
 
grehni aromatize --zone all
Scent diffusers: activating calm blend
Status: Environment optimized ✓
 
system --status

Trusted by forward-thinking spaces

★★★★★

"Grehni turned our hotel into something guests talk about for months. The environment just knows what they need."

RK
Rohan Kapoor
Director, Oberoi Hotels
★★★★★

"Our office energy bill dropped 34% in three months. And honestly — the space just feels better and more focused now."

PM
Priya Mehta
COO, Zomato
★★★★★

"Grehni is the only platform that actually understood our space rather than just controlling it."

AS
Arjun Shah
Head of Facilities, Infosys

Make your space
intelligent.

Join 12,000+ environments already running on Grehni. First 30 days free, no hardware commitment.

No credit card needed · Setup in under 10 minutes

Intelligence that understands.
Systems that aromatize.

Grehni is building the intelligence layer for the world around us. We combine AI, data and real-world understanding to create systems that perceive, learn and enhance environments in real time.

AI-Powered Intelligence
Real-time Adaptation
Scalable Infrastructure
Human-Centric Design
Veer Singh - Founder of Grehni

Veer Singh

Founder, Grehni

“We're not just building technology. We're building intelligence that elevates everyday experiences.”

Veer Singh

By 2035, our vision is clear:
To aromaticize the most hours of India.

We are on a mission to enhance everyday environments through intelligent aroma experiences — making India feel better, think better and live better.

India Constellation Network Map

India. Enhanced.

From homes to workplaces, hotels to hospitals, retail to spiritual spaces — we envision an India where every space is intelligently aromatic.

2035
Vision Year
100Cr+
Hours to be Aromatized
Every Space
Every Industry
Better Living
For Every Indian

Intelligent Aroma. Real Impact.

Smart Scenting Systems

AI-powered aroma diffusion systems that adapt to space, people and purpose.

Real-time Intelligence

Sensors and data models that understand environment, mood and behavior.

Aroma OS

Our proprietary operating system that orchestrates intelligence and aroma.

Analytics & Insights

Actionable insights that help businesses enhance experience and performance.

Scalable Platform

Built to scale across cities, industries and millions of experiences.

Observe. Understand. Enhance.

Observe
We sense the environment in real time.
Understand
We interpret data, context and human emotions.
Enhance
We deliver the right aroma for the right experience.
Adapt
We learn and adapt continuously.
Elevate
We elevate every moment, every space, every day.

The principles that drive us.

Purpose First

We build with a purpose that creates real impact.

Innovation

We challenge limits and create what's next.

Human-Centric

People, emotions and experiences come first.

Integrity

We believe in honesty, transparency and trust.

Excellence

We never stop improving what we deliver.

The future smells intelligent.

Join us in aromaticizing the most hours of India by 2035.

Let's Build the Future

Intelligence that understands.
Technology that aromatizes.

Grehni builds intelligent systems that sense, understand, predict and enhance environments in real time. Our technology combines AI, data, automation and IoT to create experiences that are context-aware, adaptive and delightful.

AI-Powered Advanced models that learn
Real-time Process & respond live
Scalable Cloud-native & secure
Reliable Enterprise uptime
Grehni 3D Isometric Technology Stack

Built on the pillars of intelligence.

Our technology foundation ensures every solution we build is powerful, adaptable and ready for the future.

Artificial Intelligence

Machine learning, deep learning and generative AI models that understand complex environmental patterns.

Real-time Data Intelligence

High-speed data ingestion, streaming analytics and real-time decision engines operating under millisecond latencies.

IoT & Edge Technology

Smart devices, edge computing clusters and mesh IoT networks engineered for autonomous real-world operation.

Cloud Native Architecture

Scalable, secure and resilient cloud infrastructure designed for high availability and elastic workloads.

Automation & Orchestration

Intelligent automation that orchestrates multi-zone workflows, aroma diffusion devices, and environmental systems.

Security by Design

End-to-end encryption, strict privacy-first architecture, and enterprise-grade regulatory compliance.

A unified intelligence architecture.

Sense
Collect data from sensors, devices and systems.
Understand
AI models analyze context and extract meaning.
Predict
Predict outcomes and recommend the best actions.
Act
Automate and execute actions in real time.
Learn
Continuously learn and improve with feedback loops.

Modern. Proven. Scalable.

Python Python
TensorFlow TensorFlow
PyTorch PyTorch
Kubernetes Kubernetes
AWS AWS
Google Cloud Google Cloud
Docker Docker

Innovate. Validate. Impact.

At Grehni, R&D is at the core of everything we build. We constantly explore new ideas, test advanced models and build real-world solutions that create meaningful impact.

50+
R&D Projects In Progress
25+
AI/ML Models Deployed
10+
Patents In Pipeline
100+
Devices & Systems Integrated

Technology that aromatizes the future.

Let's build intelligent spaces, together.

Get in Touch

The world's first
Olfactory Operating System.

Aroma OS is a real-time embedded kernel built to orchestrate ambient scent, monitor air currents, and synchronize multi-zone diffusion with human cognitive states, circadian rhythms, and building automation.

Anti-Fatigue Zero Olfactory Habituation
Micro-Droplets < 0.8 Micron Dry Vapor
Real-Time Jitter < 1.8ms Deterministic
IFRA Safety Standard 51 Certified
Aroma OS Kernel Architecture Diagram

Aroma OS Neural Scent Dispatcher

Select a clinical formulation below to see how Aroma OS modulates fragrance density, dry-vapor particle dispersal, and active diffusion duration.

Alpha Focus

Atlas Cedarwood · Italian Bergamot · Cardamom

Formulated for high-focus corporate environments, executive boardrooms, and trading floors. Modulates olfactory receptors to stabilize beta brainwaves and prevent cognitive fatigue.

Diffusion Rate: 45 µL/hr Optimal Room Volume: 120 m³
Target Olfactory Saturation Zero Habituation Cap
Status: ACTIVE IN LAB
Sub-micron Vapor: 0.65 µm
Vaporizer: PWM Controlled

Engineered from Silicon to Atmosphere.

Micro-Fluidic Actuator

Cold-vapor ultrasonic nozzles generate non-wetting dry mist with zero residue on glass or furniture.

CFD Spatial Model

Real-time computational fluid dynamics map indoor air currents from HVAC vents to prevent stagnation pockets.

Temporal Scheduler

Calculates biological olfactory decay intervals to alternate active scent micro-bursts and clean air recovery.

Mesh Synchronization

Thread and Zigbee low-latency mesh controls up to 256 physical diffuser units across multi-story buildings.

Hypoallergenic Safety

Hardware-level locks guarantee 100% compliance with IFRA limits and automated safety cut-offs.

Aroma OS Architectural Specs

Parameter Aroma OS Core Engine Standard Commercial Diffuser Enterprise Advantage
Droplet Particle Diameter < 0.8 Microns (Dry Vapor) 15 – 35 Microns (Wet Mist) Zero condensation, leaves no film on sensitive electronics
Olfactory Habituation Prevention Proprietary Micro-Burst Modulation Continuous Run (Fatigue within 20 mins) 100% human sensory awareness sustained for 8+ hours
Mesh Scaling Limit 256 Diffusers / Single Gateway 1 – 4 Units (Bluetooth Direct) Seamless multi-floor campus wide synchronization
RTOS Kernel Latency < 1.8 ms Deterministic Response Unscheduled / Mechanical Timer Instantaneous reaction to occupancy spikes or VOC events

Experience Aroma OS in your space.

Talk to our olfactory engineering team to request a customized live demonstration.

Request Aroma OS Demo

Local Perception.
Zero-Latency Neural Edge.

Grehni Edge Intelligence executes localized neural network models on dedicated silicon embedded in every gateway. It continuously processes Volatile Organic Compounds (VOC), airflow velocity, and human occupancy in under 5 milliseconds—100% on-premises without cloud round-trips.

100% Private No Local Data Leaves
4.2ms Inference Custom NPU Pipeline
MEMS Gas Array TVOC, eCO2, CH2O
Offline Ready Zero WAN Dependency
Grehni Neural Edge Unit Silicon Architecture

Sub-Millisecond On-Premises Telemetry

Physical sensor readings captured by the gateway MEMS bus and processed through the quantized 4-bit neural inference network.

Total VOC Gas
142 ppb
Optimal Indoor Purity
Estimated CO2
485 ppm
High Focus Threshold
Airflow Velocity
0.38 m/s
Dynamic Dispersion Active
Decision Latency
4.2 ms
Local NPU Vector Core

Built for Mission-Critical Reliability.

G-NEU Silicon

ARM Cortex-M55 microprocessor with Helium Vector extensions running integer-quantized sensory models.

Air-Gapped Privacy

No audio, room dimensions, or occupant behavior metrics are transmitted out of your corporate firewall.

Auto Drift Calibration

Self-learning baseline compensation algorithms prevent metal-oxide sensor drift over 5+ years of continuous operation.

Blackout Survivability

Continues precise ambient scenting schedules and localized airflow compensation even when fiber or internet goes down.

HVAC Direct Connect

Direct Modbus and BACnet IP integration interfaces with Daikin, Carrier, Honeywell, and Johnson Controls.

Upgrade your space to Edge Intelligence.

Integrate our low-power neural gateways with your existing Building Management System (BMS).

Consult an Edge Engineer

Global Fleet.
Enterprise Telemetry at Scale.

Grehni Cloud delivers multi-tenant fleet orchestration, predictive refill logistics, and ambient analytics across thousands of corporate, luxury hotel, and smart city environments worldwide.

99.99% SLA High Availability Multi-Region
500M+ Msgs/Day Kafka Event Ingestion
Predictive Refills 14-Day Advance Logistics
SOC 2 Type II ISO 27001 Certified
Grehni Global Cloud Infrastructure Mesh

Active Fleet Management Clusters

Real-time status of Grehni Cloud points of presence delivering ultra-low round-trip latency to edge gateways worldwide.

Mumbai Cluster
ap-south-1 · AWS Asia
Online Nodes: 12,480 Gateways
RTT Latency: 8 ms
Cluster Status: 99.99% Uptime
Singapore Hub
ap-southeast-1 · Asia Pacific
Online Nodes: 6,190 Gateways
RTT Latency: 19 ms
Cluster Status: 99.99% Uptime
Frankfurt Cluster
eu-central-1 · European Union
Online Nodes: 8,420 Gateways
RTT Latency: 24 ms
Cluster Status: 99.99% Uptime
US-East Region
us-east-1 · N. Virginia
Online Nodes: 14,830 Gateways
RTT Latency: 31 ms
Cluster Status: 99.99% Uptime

Built for Global Portfolios.

Predictive Supply Chain

Machine learning forecasts fragrance cartridge consumption to trigger automated doorstep deliveries 14 days ahead.

Multi-Tenant RBAC

Granular enterprise permissions with SAML 2.0 Single Sign-On, Okta, Microsoft Entra ID, and full audit trails.

Executive Analytics

Real-time corporate dashboards correlating ambient fragrance schedules with room occupancy, productivity, and air purity.

SOC 2 Type II Security

Hardware-grade mutual TLS (mTLS) authentication with 256-bit encryption for every connected gateway.

Zero-Downtime Firmware

Over-the-air (OTA) dual-partition firmware updates ensure gateways never brick during kernel enhancements.

Ready for enterprise-scale aroma orchestration?

Deploy Grehni Cloud across your global corporate or hospitality portfolio.

Contact Cloud Solutions Team

Grehni Resources.
Documentation, SDKs & Research.

Everything engineers, building designers, and enterprise integrators need to implement intelligent olfactory computing. Explore official SDKs, peer-reviewed scientific whitepapers, REST APIs, and deployment guides.

Python & Node SDK Ready for Production
Scientific Papers Olfactory Cognition (2026)
REST & WebSockets Real-Time Event Bus
IFRA Dossiers Full Safety Data Sheets
Grehni Developer Ecosystem & Code Architecture
Aroma OS v4.2 Client
import grehni_os

# Initialize secure local gateway
client = grehni_os.Client(
    gateway_ip="192.168.1.120",
    api_key="gr_live_9f8a2bc41"
)

# Subscribe to real-time spatial sensor events
@client.on_sensor_event(zone_id="boardroom-alpha")
def handle_environmental_shift(event):
    if event.occupancy > 10 and event.tvoc > 180:
        # Boost refreshing citrus-pine micro-droplet burst
        client.dispense(profile="circadian_reset", duration_sec=15)
        print(f"[Aroma OS] Triggered burst: TVOC {event.tvoc} ppb")

Published Whitepapers & Studies

Explore clinical and computational evidence demonstrating the neurological and atmospheric impact of adaptive scenting.

Research Whitepaper

Computational Olfaction (2026)

Deep neural network models for dynamic gas dispersion modeling and air current compensation in closed commercial environments.

PDF · 42 Pages Peer-Reviewed
Download PDF ↗
Clinical Study

Workplace Cognitive Uplift Study

12-month controlled trial evaluating focus, typing velocity, and fatigue alleviation using biometric-synchronized scent diffusion.

PDF · 28 Pages Infosys Campus Trial
Download Study ↗
Urban Framework

Designing Smart City Scentscapes

Spatial ambient intelligence architectural framework for multi-zone olfactory deployment in metro transit, terminals, and public lobbies.

PDF · 36 Pages Architecture Monograph
Download Monograph ↗
Hardware Guide

Gateway G100 Installation Manual

Complete mounting, PoE electrical specifications, BACnet wiring diagrams, and Thread network provisioning documentation.

PDF · 18 Pages Hardware v2.4
Download Manual ↗
Safety Dossier

IFRA Standard 51 Safety Dossier

Material Safety Data Sheets (MSDS), allergen profiling, and non-toxicity certificates for all Grehni ambient fragrance compounds.

PDF · 54 Pages Certified Hypoallergenic
Inspect Certificate ↗
Enterprise Report

Oberoi Luxury Hotel Implementation

How The Oberoi deployed Aroma OS across 4 luxury properties to achieve a 40% increase in sensory brand recall and guest satisfaction.

PDF · 16 Pages Case Study
Read Case Study ↗

Need customized technical documentation?

Our solutions architecture team is available to assist with custom hardware or software integration.

Contact Developer Support

Intelligence that adapts to
every space.

Grehni powers intelligent systems across industries. From homes to cities, from workplaces to infrastructure — we help environments understand, adapt and perform better.

Grehni Smart Spaces Connected Campus Graphic

Built for real-world impact.

Our technology solves real problems, creates measurable value and delivers intelligent experiences at scale.

20+
Industries Impacted
100+
Active Deployments
10M+
Lives Enhanced
24/7
Intelligence at Work

Real-world use cases. Measurable outcomes.

Smart Homes

Smart Homes

Create healthier, safer and more comfortable living spaces.

  • Adaptive ambient intelligence
  • Energy optimization
  • Air quality & wellness
  • Security & automation
Learn more →
Commercial Spaces

Commercial Spaces

Intelligent environments that improve productivity and efficiency.

  • Occupancy optimization
  • Energy management
  • Workspace analytics
  • Experience enhancement
Learn more →
Industrial Facilities

Industrial Facilities

Improve operations, safety and asset performance.

  • Predictive maintenance
  • Process optimization
  • Safety & compliance
  • Asset monitoring
Learn more →
Smart Cities

Smart Cities

Build sustainable, connected and responsive cities.

  • Traffic & mobility
  • Energy & utilities
  • Public safety
  • Waste management
Learn more →
Hospitality

Hospitality

Deliver personalized experiences that guests love.

  • Smart room automation
  • Guest experience
  • Energy efficiency
  • Predictive operations
Learn more →
Public Infrastructure

Public Infrastructure

Strengthen infrastructure with intelligent systems.

  • Smart lighting
  • Water management
  • Infrastructure monitoring
  • Public services
Learn more →

Designed to solve. Built to scale.

Context-Aware AI

Understands environment, behavior and intent.

Real-time Intelligence

Responds in real time with accurate insights.

Scalable & Secure

Enterprise-grade security built for scale.

Open & Integrable

Works with your systems and existing workflows.

Continuous Learning

Systems that learn, adapt and improve over time.

BUILT BY

Antellay Labs

Grehni is proudly built by Antellay Labs — a deep-tech research and product studio focused on intelligence, automation and real-world impact.

One intelligence layer. Infinite possibilities.

Let's build intelligent spaces that create a better tomorrow.

Let's Build Together

Smart Homes.
Adaptive Ambient Living for Modern Residences.

Grehni for Smart Homes transforms residential environments through multi-room micro-droplet diffusion, circadian sleep-wake aroma alignment, and smart home ecosystem synchronization with Apple HomeKit, Google Home, and Matter.

Multi-Room Independent Zone Control
Circadian Sync Morning Wake & Sleep Cycle
Ultra-Quiet < 18 dB Whisper Operation
Kid & Pet Safe 100% Hypoallergenic
Grehni Smart Homes Luxury Architecture

Four Distinct Atmospheres, One Cohesive Home

Each room in your residence requires a unique sensory profile. Aroma OS orchestrates individual room diffusers automatically based on time, sunlight, and presence.

Living Room
Cashmere Amber
Warm Hospitality & Social Gathering
Intensity: 65% · Auto Airflow Boost
Master Bedroom
French Lavender
Deep REM Sleep Synchronization
Intensity: 35% · Whisper Mode (<18dB)
Gourmet Kitchen
Bergamot & Lime
Active Cooking Odor Neutralizer
VOC Sensor Triggered · 99.2% Scrub
Home Office
Cedarwood Focus
Cognitive Beta Wave Alleviation
Anti-Fatigue Pulse · Calendar Linked

Designed for Modern Architecture.

Smart Home Ecosystem

Seamlessly integrates with Apple HomeKit, Google Assistant, Amazon Alexa, and Matter over Thread.

Dry Vapor Technology

Zero mist, zero moisture, and zero residue on expensive hardwood floors, leather, or art collections.

Circadian Scheduling

Wake up to invigorating citrus, transition to fresh mountain pine at noon, and unwind with lavender at dusk.

Certified Non-Toxic

All natural botanical formulations tested strictly against IFRA Standard 51 allergen guidelines.

Discreet Architectural Mount

Flush ceiling mounts or HVAC in-duct diffusers blend seamlessly with high-end interior architecture.

Bring intelligent aroma into your residence.

Book a personalized home consultation with our residential sensory architects.

Schedule Home Consultation

Commercial Spaces.
Cognitive Focus & Executive Brand Identity.

Designed for corporate headquarters, client presentation suites, boardrooms, and premium co-working campuses. Grehni improves cognitive sharpness by 18% and reinforces executive brand prestige through synchronized environmental aroma.

18% Focus Boost Cognitive Fatigue Alleviation
BACnet / Modbus HVAC Central Damper Sync
Occupancy Tuning Real-Time PIR & CO2 Linking
Brand Signature Bespoke Olfactory Identity
Grehni Commercial Spaces Executive Architecture

The Quantifiable Impact on Human Capital

Trials conducted across enterprise corporate campuses demonstrate measurable uplifts in cognitive alertness, client dwell time, and indoor air satisfaction.

Focus & Typing Accuracy
+18.4%
Alleviates 2:00 PM Slump
Client Dwell Time
+22.8%
In Client Presentation Lounges
Perceived Air Quality
93.6%
Employee Approval Rating
Fragrance Efficiency
3.2x
Less Liquid Waste vs Traditional

Engineered for Grade-A Office Towers.

HVAC AHU Integration

Direct in-duct vapor injection disperses ambient scent uniformly through the building's central ventilation system.

Meeting Room Automation

Synchronizes with Microsoft Outlook and Google Calendar to initiate focus aroma 5 minutes before important meetings.

Bespoke Corporate Olfactory Identity

Our master perfumers formulate an exclusive signature scent that embodies your corporate brand DNA.

Real-Time Facility Dashboard

Facilities managers monitor cartridge levels, diffuser uptime, and room air status across all floors in one UI.

Anti-Habituation Modulation

Micro-burst cycles prevent sensory fatigue so team members and visitors notice the refreshing aroma all day long.

Transform your corporate headquarters.

Schedule an enterprise workplace consultation with our commercial sensory team.

Request Commercial Demo

Industrial Facilities.
Molecular Odor Neutralization & Air Safety.

High-volume dry-vapor counteraction systems designed for chemical manufacturing, pharmaceutical cleanrooms, food processing plants, and waste management facilities. Neutralizes harsh airborne VOCs, sulfides, and industrial odors at the molecular level.

50,000 m³ Coverage per Cluster
94.6% Scrub VOC & Sulfide Elimination
316L Stainless Corrosion Resistant Hardware
24/7 Continuous Heavy Industrial Duty Cycle
Grehni Industrial Facilities Molecular Neutralization

Molecular Counteraction at Industrial Scale

Unlike masking agents that cover up foul odors, Grehni molecular vapor chemically bonds with airborne malodors to permanently neutralize them.

Volume Capacity
50,000
Per Neutralizer Cluster
VOC Degradation
94.6%
Verified Lab Neutralization
Enclosure Protection
IP66 / NEMA 4X
Corrosive Environment Proof
Operational Up-Time
99.98%
Dual Fail-Safe Actuators

Clean Air Compliance for Manufacturing Plants.

Molecular Bonding

Neutralizing vapor chemically binds with hydrogen sulfide (H2S), ammonia, and mercaptans to eradicate odor.

Bulk Logistics Refills

50-liter and 200-liter bulk neutralizer canisters with automated IoT telemetry alert for automated restock.

OSHA & EPA Compliance

Provides regulatory environmental air reporting dossiers to prove localized odor containment to municipal authorities.

Cleanroom Certified

Meets ISO 14644-1 Class 5 cleanroom particle count standards with non-condensing sub-micron dry vapor.

Scada Network Connect

OPC-UA and Modbus TCP protocols link directly with your plant DCS (Distributed Control System).

Eliminate industrial odor at the molecular level.

Schedule a plant site survey with our industrial environmental engineers.

Request Industrial Site Audit

Smart Cities.
Urban Olfactory Intelligence at Municipal Scale.

Grehni Smart Cities integrates sensory computing into metro transit hubs, municipal complexes, central commercial corridors, and civic centers to enhance public well-being, reduce commuter stress, and monitor urban air quality.

Municipal Scale District-Wide Deployment
Solar & PoE Low-Power Street Infrastructure
IP66 Weather Monsoon & Dust Proof
Urban Telemetry City Command Center API
Grehni Smart Cities Urban Architecture

Atmospheric Conditioning across Civic Zones

Connecting air quality monitoring with intelligent micro-droplet diffusion to transform public perception and urban livability.

Metro Transit Concourse
Clean Air Barrier
Neutralizes Subway Humidity & Odor
Municipal Service Hall
Stress Reduction
Alleviates Public Queue Frustration
Civic Pedestrian Plazas
Thermal Comfort
Cooling Micro-Mist with Herbal Scent
City Operations Center
Integrated SCADA
Centralized District Telemetry API

Built for Smart Municipalities.

Transit Station Zoning

Deploys non-allergenic sanitizing dry vapor in underground metro corridors and high-density passenger platforms.

Public Stress De-escalation

Utilizes clinical citrus-lavender micro-droplets in government citizen service halls to lower ambient cortisol levels.

Urban Weather Resilience

IP66 rated stainless housings engineered to endure harsh monsoon rains, extreme dust, and tropical heat.

Open Municipal API

Connects with Smart City Integrated Command and Control Centers (ICCC) via open REST and MQTT streaming.

Certified Eco-Friendly

100% biodegradable natural botanical compounds with zero synthetic aerosols or ozone-depleting propellants.

Bring sensory intelligence to your smart city.

Consult our municipal infrastructure team to plan a smart district sensory pilot.

Initiate Civic Pilot

Hospitality.
Signature Olfactory Branding & Guest Delights.

Elevate guest arrival moments, signature hotel lobbies, luxury suites, and wellness retreats. Proven across world-class hotels to drive a 40% increase in emotional brand recall and premium guest satisfaction.

40% Recall Oberoi Trial Confirmed
PMS System Sync Opera / Oracle Integration
Zoned Ambiance Lobby, Spa, Suites
Zero Wet Residue Safe for Luxury Fabrics
Grehni Luxury Hospitality Resort Architecture

The Five-Star Olfactory Guest Journey

From the moment guests step into the portico to their evening in the presidential suite, each space tells a harmonious sensory story.

Arrival & Grand Lobby
Signature Grandeur
Cardamom, White Amber & Fig
Luxury Guest Suites
Personalized Welcome
Auto-activated upon guest check-in
Spa & Wellness Retreat
Himalayan Cedar
Therapeutic relaxation & detox
Fine Dining Transition
Neutral Clean Air
Zero interference with food aromas

Why Luxury Hotel Groups Choose Grehni.

Master Perfumer Formulations

Bespoke signature scents crafted in Grasse and Mysore exclusively reserved for your property brand.

PMS Integration (Opera)

Connects with Oracle Opera so VIP suites are aromaticized with guest preference profiles 15 minutes before arrival.

Multi-Property Consistency

Ensure a consistent olfactory signature across 50+ luxury hotels in Mumbai, Dubai, London, and Singapore.

Preserves Luxury Interiors

Sub-micron dry vapor guarantees zero condensation on silk drapery, velvet upholstery, and marble flooring.

Concierge Mobile Control

Hotel staff adjust zone fragrance intensity on the fly via dedicated iPad or concierge smartphone app.

Craft your hotel group's signature scent.

Book a fragrance design workshop with our master hospitality perfumers.

Schedule Hospitality Scent Workshop

Public Infrastructure.
High-Throughput Transit & Public Venues.

Engineered for international airport terminals, central railway concourses, sports stadiums, and exhibition centers handling hundreds of thousands of daily passengers. Combines persistent odor eradication with sensory de-escalation mists in crowded security queues.

500k+ Footfall High-Throughput Terminals
AHU In-Duct Central Air Handler Injection
NFPA 90A Fire Code Aviation & Transit Compliant
Queue Calming Clinical Cortisol Reduction
Grehni Public Infrastructure Airport Architecture

Built for Transit Terminals Worldwide

High-volume AHU jet diffusion coupled with continuous VOC scrubbing transforms crowded transit hubs into pleasant, calm environments.

Daily Commuter Volume
500,000+
Handled per Terminal Day
Restroom & Gate Odor
98.4%
Permanent Molecular Elimination
Queue Stress Modulation
-27%
Passenger Frustration Markers
AHU Injector Latency
< 15 sec
Full Gate Dispersion Velocity

Engineered for World-Class Terminals.

Aviation AHU In-Duct Vapor

Direct jet vaporization into 10,000+ CFM air handlers distributes dry aroma evenly across vast airport gate wings.

Security Queue Calming

Disperses scientifically validated lavender-bergamot phytoncides in security and passport control queues.

NFPA 90A Safety Compliance

100% non-flammable dry vapor tested rigorously to pass international aviation and rail fire safety standards.

Heavy Duty Bulk Canisters

Continuous automated 90-day operation without manual maintenance, backed by IoT predictive refill alarms.

BMS & Scada Protocol Bridge

Interfaces directly with Honeywell EBI, Johnson Controls Metasys, and Siemens Desigo airport management systems.

Upgrade your public terminal's atmosphere.

Consult our aviation and transit infrastructure engineering specialists.

Schedule Terminal Site Audit

Let's build intelligent spaces, together.

We're here to answer your questions, explore ideas, and help you create environments that understand and adapt.

Send us a message

Tell us about your project or inquiry. Our team will get back to you as soon as possible.

Direct to info.celebso@gmail.com
BUILT BY

Antellay Labs

Grehni is proudly built by Antellay Labs — a deep-tech research and product studio focused on intelligence, automation and real-world impact.

We are based in Jaipur, India.

Come say hello! We'd love to meet you and explore how we can work together to build the future.

Antellay Labs ↗
Jaipur, Rajasthan, India
Jaipur Cartographic Map
Jaipur
Mansarovar
Bani Park
Malviya Nagar
Sodala
Jagatpura
Vaishali Nagar

The intelligent future is built together.

Let's collaborate, innovate and create real impact.

Get in Touch
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