Features

A renewed calculation engine. Tools designed for engineering firms.

i4o integrates the only validated solver for indoor air chemistry, born from an ADEME research project. Optimised, open and usable directly from your BIM workflow.

01

Multi-pollutant simulation

CO₂, TVOC, formaldehyde (HCHO), PM2.5, PM10, NO₂, O₃, relative humidity. 1,000 pollutants, 2,000 chemical reactions modelled.

02

Automatic outdoor air quality

Enter an address: i4o retrieves the annual data (NO₂, O₃, PM10, PM2.5) with 100 m accuracy across Europe. Choose the most representative simulation period.

03

Site analysis & Radon risk

Data from IRSN (France), JRC (Europe), US EPA (USA). View the radon risk level right from the site analysis.

04

HQE / BREEAM / LEED compliance

Built-in verification assistant. Get a certifiable PDF report, ready to submit to the certification body.

05

Custom materials

Create and manage your organisation's own material library: name, category, brand, emission data per pollutant, test report as an attachment. Shared across all members of your team.

06

Simulation variants

From an existing result, run a variant by changing materials, ventilation flow rates or filtration — without starting again from the plugin. Compare scenarios side by side.

07

Advanced graphical analysis

Time series, heat maps, scatter plots, pie charts. Min/mean/max table per pollutant. Filtering by room, by pollutant, comparison between simulations.

08

Optimised computation time

80 % faster thanks to solver optimisation and parallelisation. About 6 seconds of computation per room outside of saturated queue periods.

09

Transparent licence management

Expiry date visible from the navigation bar. Automatic alerts at D-30 and D-7. Read access kept after expiry.

i4o studio BIM viewer
BIM viewer — i4o studio
i4o verification and writing assistant — HQE Bâtiment Durable framework
Verification and writing assistant — HQE Bâtiment Durable framework
Free trial

Launch a first simulation on your projects.

No credit card required. A few minutes are enough to evaluate i4o on one of your buildings in design.

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