Domestic ventilation rates, indoor humidity and dust mite allergens: are our homes causing the asthma pandemic?

S G Howieson, A Lawson, C McSharry, G Morris, E McKenzie, J Jackson

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

This paper is concerned with historical changes in domestic ventilation rates, relative humidity and the associated risk of house dust mite colonization. A controlled trial evaluated allergen and water vapour control measures on the level of house dust mite (HDM) Der p1 allergen and indoor humidity, concurrently with changes in lung function in 54 subjects who completed the protocol. Mechanical heat recovery ventilation units significantly reduced moisture content in the active group, while HDM allergen reservoirs in carpets and beds were reduced by circa 96%. Self reported health status confirmed a significant clinical improvement in the active group. The study can form the basis for assessing minimum winter ventilation rates that can suppress RH below the critical ambient equilibrium humidity of 60% and thus inhibit dust mite colonization and activity in temperate and maritime in' uenced climatic regions.
LanguageEnglish
Pages137-147
Number of pages11
JournalBuilding Services Engineering Research and Technology
Volume24
Issue number3
DOIs
Publication statusPublished - 1 Aug 2003

Fingerprint

Allergens
Ventilation
Dust
Atmospheric humidity
Waste heat utilization
Water vapor
Moisture
Health

Keywords

  • houses
  • asthma
  • public health
  • architecture
  • ventilation

Cite this

@article{7850e4f4cb564ca3a6053c7a7767018d,
title = "Domestic ventilation rates, indoor humidity and dust mite allergens: are our homes causing the asthma pandemic?",
abstract = "This paper is concerned with historical changes in domestic ventilation rates, relative humidity and the associated risk of house dust mite colonization. A controlled trial evaluated allergen and water vapour control measures on the level of house dust mite (HDM) Der p1 allergen and indoor humidity, concurrently with changes in lung function in 54 subjects who completed the protocol. Mechanical heat recovery ventilation units significantly reduced moisture content in the active group, while HDM allergen reservoirs in carpets and beds were reduced by circa 96{\%}. Self reported health status confirmed a significant clinical improvement in the active group. The study can form the basis for assessing minimum winter ventilation rates that can suppress RH below the critical ambient equilibrium humidity of 60{\%} and thus inhibit dust mite colonization and activity in temperate and maritime in' uenced climatic regions.",
keywords = "houses, asthma, public health, architecture, ventilation",
author = "Howieson, {S G} and A Lawson and C McSharry and G Morris and E McKenzie and J Jackson",
year = "2003",
month = "8",
day = "1",
doi = "10.1191/0143624403bt067oa",
language = "English",
volume = "24",
pages = "137--147",
journal = "Building Services Engineering Research and Technology",
issn = "0143-6244",
number = "3",

}

Domestic ventilation rates, indoor humidity and dust mite allergens : are our homes causing the asthma pandemic? / Howieson, S G; Lawson, A; McSharry, C; Morris, G; McKenzie, E; Jackson, J.

In: Building Services Engineering Research and Technology, Vol. 24, No. 3, 01.08.2003, p. 137-147.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Domestic ventilation rates, indoor humidity and dust mite allergens

T2 - Building Services Engineering Research and Technology

AU - Howieson, S G

AU - Lawson, A

AU - McSharry, C

AU - Morris, G

AU - McKenzie, E

AU - Jackson, J

PY - 2003/8/1

Y1 - 2003/8/1

N2 - This paper is concerned with historical changes in domestic ventilation rates, relative humidity and the associated risk of house dust mite colonization. A controlled trial evaluated allergen and water vapour control measures on the level of house dust mite (HDM) Der p1 allergen and indoor humidity, concurrently with changes in lung function in 54 subjects who completed the protocol. Mechanical heat recovery ventilation units significantly reduced moisture content in the active group, while HDM allergen reservoirs in carpets and beds were reduced by circa 96%. Self reported health status confirmed a significant clinical improvement in the active group. The study can form the basis for assessing minimum winter ventilation rates that can suppress RH below the critical ambient equilibrium humidity of 60% and thus inhibit dust mite colonization and activity in temperate and maritime in' uenced climatic regions.

AB - This paper is concerned with historical changes in domestic ventilation rates, relative humidity and the associated risk of house dust mite colonization. A controlled trial evaluated allergen and water vapour control measures on the level of house dust mite (HDM) Der p1 allergen and indoor humidity, concurrently with changes in lung function in 54 subjects who completed the protocol. Mechanical heat recovery ventilation units significantly reduced moisture content in the active group, while HDM allergen reservoirs in carpets and beds were reduced by circa 96%. Self reported health status confirmed a significant clinical improvement in the active group. The study can form the basis for assessing minimum winter ventilation rates that can suppress RH below the critical ambient equilibrium humidity of 60% and thus inhibit dust mite colonization and activity in temperate and maritime in' uenced climatic regions.

KW - houses

KW - asthma

KW - public health

KW - architecture

KW - ventilation

U2 - 10.1191/0143624403bt067oa

DO - 10.1191/0143624403bt067oa

M3 - Article

VL - 24

SP - 137

EP - 147

JO - Building Services Engineering Research and Technology

JF - Building Services Engineering Research and Technology

SN - 0143-6244

IS - 3

ER -