Review of IAQ in Premises Equipped with Façade–Ventilation Systems

Abstract

Poor indoor air quality affects the health of the occupants of a given structure or building. It reduces the effectiveness of learning and work efficiency. Among many pollutants, PM 2.5 and 10 dusts are extremely important. They can be eliminated using mechanical ventilation equipped with filters. Façade ventilation devices are used as a way to improve indoor air quality (IAQ) in existing buildings. For their analysis, researchers used carbon dioxide as a tracer gas. They have shown that façade ventilation devices are an effective way to improve IAQ, but require further analysis due to the sensitivity of façade ventilation devices to the effects of wind and outdoor temperature. In addition, legal regulations in some countries require verification in order to enable the use of this type of solution as a way to improve IAQ in an era characterised by the effort to transform buildings into passive houses (standard for energy efficiency in a building).

Current Status of Old Housing for Low-Income Elderly Households in Seoul and Green Remodeling Support Plan: Economic Analysis Considering the Social Cost of Green Remodeling

“…There is a possibility of causing chronic diseases such as headaches and allergies due to organic compounds such as acetone, benzene, and formaldehyde generated from materials and furniture that is newly installed due to repair activities, such as interior construction and furniture replacement, while maintaining the building. This problem may be improved by regular ventilation and the use of environment friendly materials [31,32].…”

Analysis on the Exhaust Air Recirculation of the Ventilation System in Multi-Story Building

“…In the experimental method, carbon dioxide (CO 2 ) or sulfur hexafluoride (SF6) is used as a tracer gas, and the concentration is monitored to analyze the recirculation rate of exhaust air [24]. It has the advantage of being able to easily calculate the recirculation rate through the concentration detected by the measuring device.…”

The Dichotomy between Indoor Air Quality and Energy Efficiency in Light of the Onset of the COVID-19 Pandemic

“…In view of the important public spending decisions that will be taken by governments (at a central, regional and municipality level), which will allow the improvement of buildings to continue as a whole, it should be emphasized that the specific focus of the interventions and renovation plans-often made necessary due to poor conservation conditions-cannot be exclusively oriented to the issues of insulation, containment and energy efficiency of buildings (taking into account local climatic conditions). In fact, there is a risk that such interventions may have the result of altering or worsening the IAQ, the microclimatic conditions [14,15] and the natural ventilation of buildings [16][17][18][19]. Therefore, they must follow functional approaches, in many aspects of an integrated and regular type, capable of contributing to the overall improvement of the property portfolio, with the aim of promoting and, in a broader sense, permanently guaranteeing the health of citizens.…”