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Ventilation in Paint Shops and Auto Repair Workshops in 2026: What ATEX Means, Why It Is Mandatory and What Equipment You Need
Date: 14 May 2026
What ATEX ventilation is mandatory in a paint shop or auto workshop? Explosion risk, classified zones, regulations and Casals products available in Romania with real prices. Complete 2026 guide.
High-Temperature Fans in 2026: F400 vs Continuous 250°C Operation — The Difference Nobody Explained to You
Date: 12 May 2026
Confused between an F400 fan and one rated for continuous 250°C operation? They are completely different products. Full technical guide with Casals products available in Romania — with prices and real-world applications.
Air Curtain — Complete Guide: When Mandatory, How to Choose and What It Costs
Date: 08 May 2026
Air curtain guide 2026: when mandatory, how to choose between electric and hot water types, how to calculate width and air speed. Real prices.
ATEX Fans in 2026 — Complete Guide: Hazardous Zones, Categories, Temperature Classes and Approval Documents
Date: 06 May 2026
ATEX fans: zones 1/2/21/22, equipment categories, temperature classes, approval documents. Complete guide for designers and engineers.
Fan Speed Controllers in 2026 — Complete Guide: Linear, Stepped or Variable Frequency Drive?
Date: 04 May 2026
Linear, stepped or variable frequency drive? Complete guide: differences, when to use each, AC and EC motor compatibility, common mistakes.
Bathroom Extractor Fan in 2026 — Complete Guide: Airflow Calculation, What Separates the Models and What to Buy Without Regret
Date: 30 Apr 2026
How to choose the right bathroom extractor fan: airflow calculation, difference between cheap and premium models, timer vs humidity sensor.
Mould in Bathroom and Flat — Where It Really Comes From and How to Get Rid of It Permanently
Date: 29 Apr 2026
Mould keeps coming back after cleaning? The real cause is poor ventilation, not dirt. Complete guide: where it comes from, how to eliminate it permanently, what equipment prevents it.
Standard I5-2022 vs I5-2010 — What Changed and What Every HVAC Designer in Romania Needs to Know
Date: 28 Apr 2026
I5-2022 vs I5-2010: top changes for designers — IDA air quality, mandatory heat recovery nZEB, filtration matrix, airflow calculation methods.
Heat Recovery Ventilation for New Homes in 2026 — What MVHR Is, Why It Is Mandatory and What It Costs
Date: 27 Apr 2026
Heat recovery ventilation for new homes 2026: what is MVHR, why nZEB makes it mandatory, real prices, single-room unit vs. central system.
Ventilation for production halls — technical requirements, industrial risks and solutions by industry type
Date: 22 Apr 2026
Production hall ventilation: industry-specific requirements, ATEX, corrosion-resistant, smoke extraction, airflow calculation. Guide for production managers and engineers.
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