Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Clinical Trial
. 1994 Nov;88(10):771-6.
doi: 10.1016/s0954-6111(05)80200-8.

Domiciliary air filtration units, symptoms and lung function in atopic asthmatics

C J Warburton  1 , R M Niven, C A Pickering, A M Fletcher, J Hepworth, H C Francis
Affiliations
Clinical Trial

Domiciliary air filtration units, symptoms and lung function in atopic asthmatics

C J Warburton et al. Respir Med. 1994 Nov.

Abstract

Air infiltration units (AFUs) incorporating a high efficiency particulate air filter are theoretically able to remove almost all potential airborne allergens. This may have implications for subjects with allergic lower respiratory disease. AFUs were placed in the living room of 12 atopic asthmatics, and the internal filters were inserted and removed in a double-blind fashion. No difference in subjective symptom scoring, spirometry or bronchial reactivity was demonstrated. Peak expiratory flow rate (PEFR) variability was significantly improved from baseline readings, and there was a trend towards higher mean PEFRs when the filters were present in the AFU. Trends towards lower levels of airborne micro-organisms were also demonstrated when the filters were present, however no effect upon total airborne dust and airborne Der pI could be demonstrated.

PubMed Disclaimer

Comment in

  • Air filtration units.
    Warner JO, Warner JA. Warner JO, et al. Respir Med. 1995 May;89(5):394. doi: 10.1016/0954-6111(95)90019-5. Respir Med. 1995. PMID: 7638380 No abstract available.

Publication types