Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

An active heat and moisture exchanger.

F Kapadia¹, M P Shelly, J M Anthony

¹John Farman Intensive Care Unit, Addenbrooke's Hospital, Cambridge.

British Journal of Anaesthesia

|December 1, 1992

Summary

This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Adult Attachment Anxiety Is Protective Against the Effects of Internalized Homophobia on Condomless Sex Among Young Sexual Minority Men: The P18 Cohort Study.

Journal of sex research·2023

Same author

Author Correction: Waist circumference and the risk of lumbar and femur fractures: a nationwide population-based cohort study.

European review for medical and pharmacological sciences·2021

Same author

Waist circumference and the risk of lumbar and femur fractures: a nationwide population-based cohort study.

European review for medical and pharmacological sciences·2021

Same author

Positive Development and Changes in Self-Rated Health Among Young Sexual Minority Males: The P18 Cohort Study.

Behavioral medicine (Washington, D.C.)·2019

Same author

Mismatch in the distribution of floral ecotypes and pollinators: insights into the evolution of sexually deceptive orchids.

Journal of evolutionary biology·2015

Same author

Social support network characteristics and sexual risk taking among a racially/ethnically diverse sample of young, urban men who have sex with men.

AIDS and behavior·2013

An active heat and moisture exchanging filter (aHMEF) effectively humidifies inspired gases. This advanced device significantly reduces water loss compared to standard heat and moisture exchanging filters (HMEF).

Area of Science:

Respiratory care technology
Biomedical engineering

Background:

Maintaining adequate humidification of inspired gases is crucial in mechanical ventilation.
Conventional heat and moisture exchanging filters (HMEF) have limitations in providing optimal humidification.

Purpose of the Study:

To evaluate the performance of an active heat and moisture exchanging filter (aHMEF) in a laboratory setting.
To compare the humidification efficacy of the aHMEF against a standard HMEF.

Main Methods:

Laboratory evaluation using a model lung.
Comparison of aHMEF (with heating element and water supply) against a standard HMEF.
Measurement of 2-hourly water loss and catheter mount temperature.

Main Results:

Related Experiment Videos

The aHMEF significantly reduced 2-hourly water loss compared to the standard HMEF (P < 0.001).
The complete aHMEF system further reduced water loss compared to using the heating element alone (P < 0.001).
Mean catheter mount temperatures were 32.7°C (HMEF + heater) and 34.6°C (aHMEF), with a maximum of 37.7°C.

Conclusions:

The aHMEF offers effective and controllable humidification of inspired gases.
The device provides a convenient solution for improving gas humidification in respiratory care.
The aHMEF demonstrates superior performance over standard HMEF in reducing water loss and maintaining temperature.