Airsight Pro Monitor
Wireless and Battery operated. Measures multiple Indoor Air Quality Parameters
Know moreAI-powered building optimization solution
Indoor Climate & Energy Optimization Solutions for buildings without a Building Management System (BMS).
Nomestic uses room-level climate data to automatically fix ventilation issues and unlock financial savings. Healthier people, lower energy consumption, and a smaller CO2 footprint.
Illustration of the Nomestic loop: sensors detect a CO2 problem in one room, the system opens the outdoor-air damper from 18% to 38% automatically, and CO2 returns to a good level.
Why
Since May 2026, the revised Energy Performance of Buildings Directive (EPBD IV) includes indoor environmental quality. Building operators must:
Measure
Indoor environmental quality at room level: find underperforming spaces and verify that fixes work.
Maintain
Healthy indoor air quality, comfort and ventilation across all occupied spaces.
Translate
IEQ data into compliance evidence, smarter upgrades and energy-efficient buildings.
BACS regulation
What the new building automation and control rules mean for you.
01
What is BACS and why is it required?
BACS stands for Building Automation and Control Systems. From January 1, 2026, large buildings must continuously monitor and optimize their installations.
25–30%of energy is wasted in many buildings through poorly configured systems.
BACS ensures you see what's happening in real time and adjust automatically where needed.
02
Does this apply to my building?
BACS is mandatory for non-residential buildings with HVAC systems.
January 1, 2026Installations with nominal capacity > 290 kW
May 29, 2026Indoor climate must be continuously monitored
From 2030Installations with nominal capacity > 70 kW
How
Monitoring, analytics and fully automatic control in one loop.
Room-level data becomes verified ventilation energy savings, and your team doesn't have to chase every issue.
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Ventilation performance and maintenance issues, room by room.
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Issues become automatic adjustments on your existing Ventilation System.
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Maintenance costs, Ventilation energy use, and CO2 emissions
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Energy cost savings per m². Ready for your compliance report.
Illustration of the Nomestic loop: sensors detect a CO2 problem in one room, the system opens the outdoor-air damper from 18% to 38% automatically, and CO2 returns to a good level.
What
One wireless solution that sits on top of your existing Ventilation System.
Plug-and-play hardware and platform for your portfolio. It works for buildings without a Building Management System (BMS), and nothing in your HVAC infrastructure gets replaced.
Airsight CO2 Monitor
Compact IAQ Monitor with Sleek Display
Know more
ClimateIQ Platform
An indoor climate intelligence platform for insights, analytics and automated HVAC operations.
Know more- 01
Works without a Building Management System (BMS)
- 02
Fault detection & diagnostics for predictive maintenance
- 03
Data-driven automatic ventilation control
- 04
Reports with verified energy savings and CO2 reduction
For building owners & operators
Better indoor climate and lower energy costs, with the proof to back them up.
HVAC-related energy savings
Lower service costs per square meter.
Less service-desk calls
Fewer calls about comfort and sick-building syndrome.
Health & productivity
A comfortable climate and better cognitive performance.
Compliance reporting
Verified evidence for your energy-saving reports.
Sustainability
Less wasted energy means fewer CO2 emissions.
Ventilation that only runs when and where it's needed cuts your building's carbon footprint, and every metric ton saved is measured and verified.
FAQ
Common questions
Do I need to replace or modify my HVAC system?
No. Nomestic sits on top of your existing HVAC and adjusts it automatically. Nothing is replaced or rebuilt.
Does it require a Building Management System (BMS)?
No. Nomestic works without a Building Management System (BMS).
How long does installation take?
Our devices are wireless and battery-powered, so each room takes minutes. There is no cabling and no downtime.
Can my team override automatic adjustments?
Yes. Every change is visible in the dashboard, and operators can override or pause automatic control at any time.
How are savings verified?
Nomestic compares measured energy use and indoor climate before and after each adjustment, using the same sensors, and reports the savings per m².
How does Nomestic help with EPBD IV?
It measures indoor environmental quality room by room, keeps it healthy automatically, and turns the data into compliance evidence and energy-saving reports.
Comply with the revised energy performance regulation without changing your existing HVAC infrastructure.
Start with one building. We'll show you the issues, fix them automatically and verify the energy and financial savings per m².