Guests notice
Hotels, restaurants and cafés show a live clean-air score at the entrance.
Show guests and employees that the air inside is clean — measured, purified automatically and visible at the door.

From clinics and pharmacies to salons, gyms and hotels: how a space measures the air, purifies it automatically and shows guests the result.
Hotels, restaurants and cafés show a live clean-air score at the entrance.
CO₂ and particle levels are kept in check automatically — fewer sick days, better concentration.
A public QR page shows the indoor score at any time.

Commercial sites in Strumica host sensors of the public network.

Commercial and traffic zone

Main road and fuel station

Industrial emissions context

Measures particles, CO₂, VOC, temperature and humidity.

Starts automatically when the air gets worse.
What facility managers see every day.


An interactive walk-through: every device can be clicked.
Sensor, purifier, app and your green pin on the Terra Regina map: what each one brings to your business.
Tell us about your space and we will propose monitors, purifiers and a display.