Controlled mechanical ventilation with heat recovery takes place by means of machinery that is installed inside industries or factories and simply exchanges the internal air with the external one. Thanks to this operation – taking the internal air and sending it out – the air passes through a heat exchanger, which retains the heat itself. 

The controlled mechanical ventilation system is used in particular to avoid mold, humidity and condensation inside the home. But in reality every controlled mechanical ventilation system achieves this result as a “side effect”, but it is not its main function. For more information about the positive pressurization unit, visit the website https://www.refrind.com/en/our-products/pressurization-systems/industrial-positive-pressure-ventilation-units/

Hence, one way to ensure the protection of workers in places where there may be gas leaks is to prepare local pressurization filters, or spaces interposed to separate the safe area from the compartment with the danger of gas emissions and toxic substances. Designed to allow the occupants to breathe properly through the special ventilation ducts created ad hoc. It is an essential tool, made with high-strength materials capable of filtering and purifying the air even in contact with high temperatures. The pressurization devices are made using filters and perimeter gaskets which, when assembled together, give a suitable suitability for the correct functioning of the gasket described above and correctly calibrated return springs that guarantee its closure. 

The systems to ensure that there is an air pressurization are designed to create a “safe” place for the occupants of the building who have to operate in a difficult scenario due to gas emissions. This prevents gases from escaping naturally through special fireplaces or windowed surfaces, and the filter will be pressurized by means of a special ventilation system with parameters expressly indicated by law. The systems we are talking about provide for adequate openings or gas evacuation filters that exploit the natural principle of thermal stratification to guarantee the protection of people inside the filter, while the general principle for which a filter is pressurized in the event of emission is to maintain a positive pressure differential between the area to be protected and the premises where the event took place, with the aim of preventing the smoke or gas produced by the sinistros8 event from penetrating inside it.