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Date: 19 May 2026
Quick Selection Guide: Which Industrial Fan for Which Application — Complete Table 2026
You need an industrial fan and are not sure which model to choose? This guide gives you the answer in 2 minutes. No complicated formulas — just your application, the right type of fan and the model available in stock in Romania.
If after the table you are still unsure or have specific airflow and pressure parameters, the ventilation.ro team provides free technical consultation with a response within 4 hours.
How to Use This Guide
Step 1: Find your application in the table below.
Step 2: Check the recommended fan type and any special conditions.
Step 3: Access the recommended product directly or contact us with your parameters.
Simple rule: if your application involves a special risk — flammable vapours (ATEX), temperatures above 80°C, corrosive agents or fire smoke extraction — do not choose a standard fan. The dedicated sections in this article explain why.
Quick Selection Table
General Industrial Ventilation
| Application | Specific condition | Recommended type | Casals / Nicotra model |
|---|---|---|---|
| Production hall — wall extraction | H < 8m, medium airflow | Industrial axial wall fan | Casals HBF / HMF |
| Production hall — roof extraction | H > 8m, hot air trapped under roof | Centrifugal roof turret | Casals DHUMAT |
| Logistics warehouse — high airflow | Large areas, heights > 6m | High-airflow axial fan | Casals HMF 80–100 |
| Mechanical workshop — general extraction | No special risks | Axial wall fan IP55 | Casals HBF |
| Technical office / commercial space | Medium ductwork, low pressure | In-line centrifugal | Casals MB |
| Server room / equipment cooling | Controlled temperature, low airflow | Compact centrifugal | Casals MB small |
Applications with Special Requirements
| Application | Mandatory requirement | Recommended type | Model |
|---|---|---|---|
| Auto paint shop / spray booth | ATEX Zone 1 — II2G mandatory | ATEX centrifugal | Casals MBX 22/9 T2 |
| Small paint shop, direct exhaust | ATEX Zone 1 — II2G mandatory | ATEX axial | Casals HCX 63 T4 |
| Workshop with occasional solvents | ATEX Zone 2 — II3G minimum | ATEX centrifugal Zone 2 | Casals MAX 28 T2 |
| Paint drying oven / thermal tunnel | S1 continuous duty up to 150°C | High-temp centrifugal | Casals CF 0.5 HP 200 M4 |
| Industrial process up to 250°C | S1 continuous duty | High-temp centrifugal | Casals MB 12/5 T4 |
| Chemical industry / electroplating | PP anti-corrosion material | PP centrifugal | Casals MBP / MBPV |
| Corrosive + flammable vapours | PP + ATEX Zone 2 | PP ATEX centrifugal | Casals MBPCX |
| Indoor swimming pool / chlorine | Chlorine-resistant material | PP centrifugal | Casals MBP |
Professional Kitchens and HoReCa
| Application | Specific requirement | Recommended type | Model |
|---|---|---|---|
| Small restaurant kitchen | Grease resistance, air up to 120°C | AISI 304 stainless centrifugal | CF HP 250 M4 |
| Industrial canteen / 4-5★ hotel | High airflow, IE3 motor mandatory ≥7.5kW | Large stainless centrifugal | CF HP 450 T4 |
| Industrial hood / thermal process | Continuous temperatures up to 150°C | Stainless S1 centrifugal | CF HP range |
Smoke Extraction and Fire Safety Systems
| Application | Mandatory certification | Recommended type | Model |
|---|---|---|---|
| Underground / covered car park | F400 + EN 12101-3:2015 mandatory | F400 centrifugal turret | Casals DHUMAT 400 T4 |
| High-rise building IGH | F400 + EN 12101-3:2015 mandatory | F400 axial / centrifugal | Casals HMF 80 T4 |
| Large project — high F400 airflow | F400 + EN 12101-3:2015 | Large F400 centrifugal | Casals IGNÉO 711 T4 |
| Office building / medium-risk warehouse | F300 accepted — EN 12101-3:2015 | F300 axial | Casals HBF 50 T4 |
| Underground car park — impulse ventilation | F400 + reversible mandatory | Bidirectional Jet Fan | Casals JFCB |
| Road / railway tunnel | 600°C/120min — DIN EN 12101-3 | Murovent 600°C | Nicotra Gebhardt RWM 57 |
What Happens If You Choose Wrong — 4 Common Mistakes
Mistake 1 — Standard fan in a paint shop
A fan without ATEX certification installed in a spray booth generates electrical sparks in the presence of solvent vapours. The result can be an explosion. Beyond the risk to life, the fine under HG 245/2016 is between 3,000 and 10,000 lei, and insurance is invalidated in the event of a claim.
The correct solution: Casals MBX or HCX with II2G certification — see ATEX products.
Mistake 2 — F400 fan on a drying oven
An F400-certified fan (fire resistance for emergencies) is not designed for continuous operation at 150°C. The S2 duty motor deteriorates within a few weeks of permanent running.
The correct solution: CF or MB with S1 duty at the process temperature — see products.
Mistake 3 — Axial fan on long ductwork
An axial fan selected on maximum airflow operates at 30–40% of its rated airflow if the static pressure of the network exceeds 100 Pa. A ductwork run of 10 metres with 3 bends can easily generate 200–300 Pa.
The correct solution: medium-pressure centrifugal fan for networks with long ductwork or more than 2 bends.
Mistake 4 — Wall fan for a tall hall
In a hall 10 metres high, the hot air under the roof remains trapped if extraction is only through side walls. Floor-level temperature remains high even when a large total airflow is extracted.
The correct solution: roof turrets to extract stratified hot air from under the roof, combined with wall fans to create horizontal flow at working level.
Quick Sizing — The Basic Formula
If you do not have a calculated design, you can estimate the minimum required airflow with this formula:
Required airflow (m³/h) = Space volume (m³) × Air changes per hour
Recommended air changes by application type:
- Warehouse without intensive activity: 6–10 ACH
- Light production workshop: 10–20 ACH
- Production with hot machinery: 20–40 ACH
- Active paint shop: minimum 15 ACH
- Professional kitchen: minimum 40 ACH
- Welding / foundry: 40–60 ACH
Example: hall 50m × 30m × 7m = 10,500 m³ · medium production (20 ACH) = 210,000 m³/h total airflow → 6 HMF fans at approximately 35,000 m³/h each.
Note for elevated temperatures: if the transported air is at temperature T°C, the actual airflow is lower. Correction formula:
Q_actual = Q_standard × (293 / (273 + T°C)). At 150°C, actual airflow is 31% lower than at 20°C.
Not Sure? Send Us Your Data — We Respond Within 4 Hours
If you have the parameters below, the ventilation.ro team will recommend the exact model with the performance curve at the working point and the price, within 4 hours:
- Application type (from the table above)
- Space volume or required airflow (m³/h)
- Estimated static pressure or ductwork length
- Air temperature (if different from ambient)
- Available voltage (230V single-phase / 400V three-phase)
- Any special requirement (ATEX, F400, anti-corrosion etc.)
→ Request free technical recommendation
Tel: +40 722 667 239 · WhatsApp: +40 790 721 172
Related Articles
- Summer in the Factory: Why It Reaches 45°C and What You Can Do
- High-Temperature Fans: F400 vs Continuous 250°C Operation
- Ventilation in Paint Shops and Auto Workshops: Mandatory ATEX
- Production Hall Ventilation: Technical Requirements and Solutions
- Regulation P118-1:2025 and Its Impact on Smoke Extraction Systems
- Axial vs Centrifugal Fan: The Difference and When to Use Each
Products in stock at ventilation.ro — exclusive representative for Casals (Spain) and Nicotra Gebhardt (Italy) in Romania. Free technical consultation for sizing and selection.
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