Extraction airflow calculator
Prepare your project in a few minutes: guidance, hood airflow and duct diameter, calculated to INRS rules. Our engineering team confirms the sizing from your photos and drawings.
Pre-assessment
Five questions to point your project to the right equipment family and a first airflow estimate.
Customer area
Tool reserved for our customers
This tool is available with a CAPTAIR & DIMAVENT customer account. Request access: we create your login and send it to you by email.
A specific project? Describe it to our engineering office ↗
Airflow calculator
Two common air-flow calculations: the airflow a capture device needs, then the duct diameter that maintains conveying velocity.
INRS formulas and velocities (guide ED 695, tables III, IV and VI): hood airflow by shape and distance, capture velocity by emission mode, transport velocity by pollutant.
Tool reserved for our customers
This tool is also reserved for customer accounts. Log in or request access in the box above.
Contact us
Let’s talk about your installation.
A technician from our engineering office studies your needs and proposes the right solution for your workshop: machine, capture, ductwork and filtration.
Reply within 48 working hours.
Your request, step by step
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1
You describe your needs
Pollutant, workstations, constraints: a few lines are enough. A photo of the installation helps us a lot.
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2
Our engineering office studies it
Capture, airflow, ductwork and filtration are sized for your site, together with you if anything needs clarifying.
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3
You receive a written proposal
Machine, options and price, in detail: you decide with full knowledge of the facts.
- Since 1994in industrial air treatment
- In-house engineering officefrom design to supply
- All brandsfilters and spare parts
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