Relationship Between Airborne Fungi Presence and the Position of the High Efficiency Particulate Air Filter in the Heating, Ventilation, and Air Conditioning System.
air conditioning
environmental monitoring
filters
fungi
hospital
Journal
HERD
ISSN: 2167-5112
Titre abrégé: HERD
Pays: United States
ID NLM: 101537529
Informations de publication
Date de publication:
Oct 2023
Oct 2023
Historique:
medline:
3
11
2023
pubmed:
27
6
2023
entrez:
27
6
2023
Statut:
ppublish
Résumé
Establish the influence of the terminal or nonterminal position of High Efficiency Particulate Air (HEPA) filters in the Heating, Ventilation, and Air Conditioning (HVAC) system on the presence of airborne fungi in controlled environment rooms. Fungal infections are an important cause of morbidity and mortality in hospitalized patients. This study was realized from 2010 to 2017, in rooms with terminal and nonterminal HEPA filters, in eight Spanish hospitals. In rooms with terminal HEPA filters, 2,053 and 2,049 samples were recollected, and in rooms with nonterminal HEPA filters, 430 and 428 samples were recollected in the air discharge outlet (Point 1) and in the center of the room (Point 2), respectively. Temperature, relative humidity, air changes per hour, and differential pressure were recollected. Multivariable analysis showed higher odds ratio ( HEPA filter in terminal position of the HVAC system reduces the presence of airborne fungi. To decrease the presence of airborne fungi, adequate maintenance of the environmental and design parameters is necessary in addition to the terminal position of the HEPA filter.
Sections du résumé
AIM
UNASSIGNED
Establish the influence of the terminal or nonterminal position of High Efficiency Particulate Air (HEPA) filters in the Heating, Ventilation, and Air Conditioning (HVAC) system on the presence of airborne fungi in controlled environment rooms.
BACKGROUND
UNASSIGNED
Fungal infections are an important cause of morbidity and mortality in hospitalized patients.
METHODS
UNASSIGNED
This study was realized from 2010 to 2017, in rooms with terminal and nonterminal HEPA filters, in eight Spanish hospitals. In rooms with terminal HEPA filters, 2,053 and 2,049 samples were recollected, and in rooms with nonterminal HEPA filters, 430 and 428 samples were recollected in the air discharge outlet (Point 1) and in the center of the room (Point 2), respectively. Temperature, relative humidity, air changes per hour, and differential pressure were recollected.
RESULTS
UNASSIGNED
Multivariable analysis showed higher odds ratio (
CONCLUSIONS
UNASSIGNED
HEPA filter in terminal position of the HVAC system reduces the presence of airborne fungi. To decrease the presence of airborne fungi, adequate maintenance of the environmental and design parameters is necessary in addition to the terminal position of the HEPA filter.
Identifiants
pubmed: 37365804
doi: 10.1177/19375867231181556
doi:
Substances chimiques
Dust
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
56-68Déclaration de conflit d'intérêts
Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.