Abstract
Most, if not all, asthmatics suffer bronchoconstriction following hyperventilation of cold dry air. The mechanics of the response is not known but may be due to either airway cooling, airway moisture loss, vagal nerve reflex action, hyperpnoea, or a combination of these factors. Further work is required to isolate which factors are involved in the processes leading to the asthma attack. To do this, it is necessary to study the responses of asthmatics to hyperventilation of air at various temperatures, water content and minute-ventilation levels. The equipment described in the paper is capable of conditioning air over a temperature range of −20°C to +40°C and water content from dry to fully saturated. It is designed to be cleanable and is manufactured from materials which will not corrode.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Medical & Biological Engineering & Computing
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
