Ventilation

A family of four releases 10–15 litres of water into their home's air every day — and without proper ventilation, that water becomes condensation, mould and heavy bedroom air. The complete room-by-room guide: which equipment to choose for the bathroom, kitchen, bedroom, laundry and garage, the airflows required by Standard I5-2022, and the full product shopping list for the whole house, with real budgets.

On 24 July 2026, Regulation (EU) 2024/1834 becomes fully applicable — the biggest legislative change in the fan industry in 15 years. Efficiency thresholds rise, exemptions nearly vanish, and a large share of cheap fans permanently leaves the EU market. Complete guide: who is affected, which deadlines apply and what decisions to make now.

Neighbour's cooking smell coming through your bathroom ventilation? It's not the building manager's fault — it's a technical problem with a precise solution. Find out exactly why it happens, how to check in 30 seconds and what to do so it never happens again.

ISU file rejected over a missing certificate? The exact list of mandatory documents, common mistakes and correct F400/F300 classification under P118-1:2025.

An undersized heat recovery unit leaves behind humidity and stale air; an oversized one costs more for no real benefit. This guide walks through two simple sizing methods — by rooms and occupants, or by home volume — and includes an interactive calculator that tells you exactly how many m³/h you need, plus the recommended product range.

The real difference — the one that never shows up in any quote — only becomes visible after installation: at the first fire-safety inspection that finds an unapproved unit in a smoke extraction system, in a motor that burns out after six months of continuous operation on a dryer it was never designed for, or simply in an energy bill that keeps climbing month after month with no obvious explanation.

Do you know what your facility's fans are actually costing you each year? A single 2.2 kW AC motor running 16 hours a day adds up to nearly €1,600 annually — and if you have 6 fans, that's over €9,500 disappearing into electricity bills every year. Use the calculator in this article, enter your real figures, and find out in 30 seconds exactly what you're losing — and how quickly EC motors pay for themselves.

Every residential complex, shopping centre or office building constructed in Romania includes one or more underground car parks. Designers know that ventilation is mandatory — but the exact regulations, correct airflow rates and the choice between jet fans and ductwork are rarely explained clearly. 

Ventilation in hotels and guesthouses is not a comfort detail. It is a mandatory technical requirement and directly linked to the star/flower classification of the tourist accommodation structure. This article explains exactly what is mandatory in each zone of a hotel or guesthouse, which products are suitable, and what a complete system costs.