Humidifier lung and humidifier fever

  title={Humidifier lung and humidifier fever},
  author={Xaver Baur and J{\"u}rgen Behr and Mahmoud Dewair and W. J. Ehret and G{\"u}nter Fruhmann and Claus F. Vogelmeier and W. Weiss and Volker Zinkernagel},
The aim of our study was to evaluate clinical diagnoses in symptomatic persons exposed to aerosols from humidifiers or air conditioners. In addition, we tried to identify the causative antigens. Results of clinical investigations, including inhalation challenge tests, demonstrated a typical hypersensitivity pneumonitis (humidifier lung) in 9 persons and isolated systemic symptoms without significant changes in lung function and chest x-rays (humidifier fever) in 3 persons. Microbiological… 

Review of Humidifier Lung Cases Caused by Use of Humidifier - Focusing on Probable Environmental Causal Agents -

Governmental policy should be devised and measures including a national surveillance system should be taken to prevent humidifier lung caused by the use of humidifiers.

A cluster of lung injury associated with home humidifier use: clinical, radiological and pathological description of a new syndrome

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Identification and Possible Disease Mechanisms of an Under-Recognized Fungus, Aureobasidium pullulans

Respirable-sized conidia of A. pullulans are emitted from flowers and form high concentrations in the air, associated with immediate reactivity on skin tests, bind to patient sera IgE, and might be relevant in allergic upper and lower airway diseases.

Portable ultrasonic humidifier exacerbates indoor bioaerosol risks by raising bacterial concentrations and fueling pathogenic genera.

The results show that ultrasonic humidification contaminates indoor air by raising bacterial concentrations and fueling the pathogenic genera, and occupants should avoid long-term and excessive humidification (RH ≥ 70%) and clean the Ultrasonic humidifier weekly.

Verlaufsformen der Befeuchterlunge

Clinical and immunological investigations of 15 workers in a repro-printing house revealed a prevalence of 7% for the occurence of humidifier-lung, and reduction of microorganisms in humidifiers seems to be essential for the prevention of disease.

Spotlight on the diagnosis of extrinsic allergic alveolitis (hypersensitivity pneumonitis)

The state of the art references, a detailed case description and a current diagnostics schema are provided and they are recommended to help diagnose hypersensitivity pneumonitis.

Severe Acute Fibrinous and Organizing Pneumonia with Acute Respiratory Distress Syndrome

The histological pattern of the patient's case is differentiated from diffuse alveolar damage by the absence of hyaline membranes, and from eos inophilic pneumonia by the lack of eosinophils.

Determination of ATP-activity as a useful tool for monitoring microbial load in aqueous humidifier samples.

Mycoflora Associated with Some Textiles in Jeddah City

The Mycoflora of eight different fabrics, collected from warehouses in Jeddah, Saudi Arabia, were isolated by different methods; contact plate, dilution, Stomacher, and moisturization that followed by contact plate method, indicating that the tested fungi responded differently to the detergent type and its concentration.



Bacterial endotoxin isolated from a water spray air humidification system as a putative agent of occupation-related lung disease

The data strongly suggest that an aerosolized bacterial endotoxin is a putative agent inducing lung disease.

Humidifier-associated extrinsic allergic alveolitis.

Three cases of allergic alveolitis due to indoor humdification systems are described, two of them in a printing office and one in a home humidifier.

Microbial and immunological investigations and remedial action after an outbreak of humidifier fever

  • J. Edwards
  • Environmental Science
    British journal of industrial medicine
  • 1980
ABSTRACT Humidifier fever (Monday sickness) occuring in office staff in a factory processing rayon presented as pyrexia with a polyuria and leucocytosis on the first day back to work after a break

Humidifier lung. An outbreak in office workers.

Symptoms consistent with hypersensitivity pneumonitis (HP) occurred in 26 of 50 employees working in a localized area of a large factory. This area was served by a single heating-cooling unit

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Three cases of humidifier fever were detected in an office environment and general immuno‐globulins as well as antibodies to Flavobacterium and endotoxin were slightly elevated in the exposed group.

Exposures to Respirable, AirbornePenicillium from a Contaminated Ventilation System: Clinical, Environmental and Epidemiological Aspects

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Exposures to respirable, airborne Penicillium from a contaminated ventilation system: clinical, environmental and epidemiological aspects.

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An epidemic of extrinsic allergic alveolitis caused by tap water

Although the clinical picture resembles extrinsic allergic alveolitis, it is possible that bacterial endotoxins have induced alternative pathway complement activation and release of leukocyte pyrogens.

Early detection of hypersensitivity pneumonitis in office workers.