https://www.ashe.org/ en Fri, 22 May 2026 06:30:45 -0500 Fri, 17 Apr 26 11:54:55 -0500 https://www.ashe.org/overview-ashraeashe-guideline-43-operations-guideline-ventilation-health-care-facilities <div class="raw-html-embed"><div class="raw-html-embed"> <p> <span>.</span> </p> </div></div> Fri, 17 Apr 2026 11:54:55 -0500 Ventilation https://www.ashe.org/standard170-2025 Fri, 16 Jan 2026 15:03:37 -0600 Ventilation https://www.ashe.org/ashrae-ashe-guideline-43 Wed, 28 Feb 2024 15:04:06 -0600 Ventilation https://www.ashe.org/ashrae-and-ashe-seeking-comments-new-hvac-operations-guideline <p>ASHRAE and the American Society for Health Care Engineering (ASHE) have issued a 45-day public review period from Oct. 6 to Nov. 20, 2023, on the new Guideline 43, Operations Guideline for Ventilation of Health Care Facilities.</p> <p>The guideline, developed by ASHRAE in collaboration with ASHE, gives recommendations for the operation of heating, ventilation and air conditioning (HVAC) systems that provide environmental control in health care facilities for the safety and comfort of facility occupants. Guideline 43 addresses health care HVAC systems as a comprehensive whole while also establishing a consistent standard for the maintenance and operation of these systems.</p> <p>The scope of the new guideline is intended to apply to patient care areas, resident care areas and related support areas within health care facilities, and provides recommendations on acceptable temperature and humidity ranges, ventilation rates, operational parameters and preventive maintenance.</p> <p>By introducing Guideline 43, ASHRAE and ASHE seek to render obsolete the long-standing practice of using HVAC design standards as operational practice standards and resolve discrepancies between what is allowable by design standards and what constitutes nominal HVAC performance. It encourages the optimization of HVAC systems and the resources they use through the application of a maintenance program in conjunction with the appropriate application of alternative equipment maintenance and reliability-centered maintenance practices.</p> <p>Because this guideline will establish recommendations on operational parameters, tasks and rates, ASHE members are strongly encouraged to review and provide vital input to ensure that these recommendations are valid. </p> <p>To review and make comments on the new guideline, access the <a href="https://osr.ashrae.org/default.aspx" target="_blank">ASHRAE Public Review webpage</a>. The comment period will be open from Oct. 6 to Nov. 20, 2023.</p> Wed, 04 Oct 2023 09:08:04 -0500 Ventilation https://www.ashe.org/project-firstline/explainer-videos Mon, 02 Oct 2023 11:05:26 -0500 Ventilation https://www.ashe.org/project-firstline/ventilation-e-learning-course Thu, 28 Apr 2022 15:41:04 -0500 Ventilation https://www.ashe.org/project-firstline/ventilation-quick-guide Mon, 21 Mar 2022 16:09:01 -0500 Ventilation https://www.ashe.org/project-firstline/videos-on-ventilation <div class="row">/* PFLmenu */ .PFLmenu{ margin:20px auto; padding-bottom: 5px; color: #afb1b1; letter-spacing: 1.5px; font-weight: 400; font-size: .7em; width:80%; } .PFLmenu .PFLMenuBar{ border: 1px solid #eaaa00; padding:5px 10px; overflow:auto; } .PFLmenu .PFLMenuBar .PFLmenuGroup a:after{ content: "|"; padding: 0 3px 0 6px; color: #eaaa00; font-weight:700; } .PFLmenu .PFLMenuBar .PFLmenuGroup a:last-child:after{ content: ""; } .PFLmenu a.PFLmenuHome{ text-transform:uppercase; color: #d50032 ; font-weight: 700; } .PFLmenu a.PFLmenuHome:hover{ color: #651d32; } .PFLmenu .PFLmenuGroup{ float: right; } .PFLmenu .PFLmenuHome, .PFLmenu .PFLmenuParent{ text-transform: ; color: #555; opacity: .9; } .PFLmenu .PFLmenuParent{ float:; font-weight: 700; } .PFLmenu .PFLmenuChild{ } .PFLmenu .PFLmenuCurrent{ opacity: .7; } .PFLmenu .PFLmenuHome:hover, .PFLmenu .PFLmenuParent:hover{ text-transform: ; color: #005844; } .PFLmenu .PFLmenuActive{ font-weight:500; color:#005844; } /* PFLmenu // */ <div class="PFLmenu"><div class="PFLMenuBar"><p><a class="PFLmenuHome" href="https://www.aha.org/center/project-firstline" target="_blank">Project Firstline</a></p><div class="PFLmenuGroup"><a class="PFLmenuParent" href="https://www.ahe.org/project-firstline" target="_blank">Environmental Services</a> <a class="PFLmenuParent" href="https://www.ashe.org/project-firstline">Health Care Facilities</a> <a class="PFLmenuParent" href="https://teamstepps-video-toolkit.aha.org/" target="_blank">Enhancing Teamwork</a> <a class="PFLmenuParent" href="https://www.aha.org/center/project-firstline#ICT" target="_blank">Infection Contol Training</a></div></div></div></div>/*.vc_Lead_Paragraph { margin-bottom: 50px; }*/ .vc_Lead_Paragraph p { font-size: 22px; } /*bullets start*/ .vc_Lead_Paragraph ul { list-style: none; /* Remove default bullets */ padding-left: 0px; margin-bottom: 25px; } .vc_Lead_Paragraph ul li { margin-bottom: 7px; line-height: 1.5em; } .vc_Lead_Paragraph ul li::before { content: " "; font-size: 1em; margin-right: 10px; display: inline-block; height: 12px; background-color: #d50032; width: 12px; position: relative; top: 0px; } .vc_Lead_Paragraph ul li { padding-left: 23px; text-indent: -23px; } /*bullets end*/ .field_lead p { color: #63666A; font-weight: 300; line-height: 1.4; font-size: 21px; } .panel-body{ min-height: 450px } <div class="container"><div class="row"><div class="field_lead"><p>ASHE is pleased to be a partner in Project Firstline, a CDC collaborative for infection prevention and control. Project Firstline is committed to preparing front-line health care workers and the public health workforce to protect themselves, their patients, and their communities from infectious disease threats. ASHE has developed videos for clinicians working in a health care setting covering important topics such as negative pressure rooms, AIIRs, room turnovers and air changes per hour, and many more!</p></div><p><a class="btn btn-wide btn-primary" href="https://www.ashe.org/project-firstline" target="_blank" data-view-context="top-level-view">View All Project Firstline Resources</a></p><h2>Video Series:</h2><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=wlCK5zPO-fU">A.I.I.R. and Room Turnover</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about AIIR and Room Turnover, and implementing a multidisciplinary approach to infection control, click play. </p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/CJwRRyloY20" target="_blank" rel="noopener nofollow"><span><strong>A.I.I.R. y Rotación de Habitaciones</strong></span></a></li></ul></div><p> </p></div></div></div><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=4q5KCiH58uI">Negative Pressure Rooms</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about Negative Pressure Rooms, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/Fd_uW8bkrTA" target="_blank" rel="noopener nofollow"><span><strong>Salas de Presión Negativa</strong></span></a></li></ul></div><p> </p></div></div></div><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=K84VHcHa3IM">What is a Negative Pressure Anteroom?</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about Negative Pressure Anterooms, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/736r4owaGSs" target="_blank" rel="noopener nofollow"><span><strong>¿Qué son las antesalas de presión negativa?</strong></span></a></li></ul></div></div></div></div></div><div class="row"><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=mycx7WZqtpY">What is an A.I.I. Room?</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about  AIIR Rooms, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/VDsG6etni5k" target="_blank" rel="noopener nofollow"><span><strong>¿Qué es un A.I.I. ¿Habitación?</strong></span></a></li></ul></div><p> </p></div></div></div><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=HpwApnO9olo">Portable HEPAS</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about portable HEPA machines, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/i0zBeQB08qg" target="_blank" rel="noopener nofollow"><span><strong>HEPAS portátiles</strong></span></a></li></ul></div></div></div></div><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=o0I1GauYi6c">Why are temperature and humidity important to patient healing?</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about why temperature and humidity are important in healing, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/NYN9lc46h4I" target="_blank" rel="noopener nofollow"><span><strong>¿Por qué la temperatura y la humedad son importantes para la curación del paciente?</strong></span></a></li></ul></div></div></div></div></div></div><div class="row"><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=mycx7WZqtpY">Anteroom Storage</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about  Anteroom Storage, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/DFs4Z_oLAq8" target="_blank" rel="noopener nofollow"><span><strong>Almacenamiento Antesala</strong></span></a></li></ul></div></div></div></div><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=bPRmDMbJLFM">Outside Air vs. Recirculation</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn the difference between outside air vs. recirculation and why it is important for infection control, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/eE_2LS4Y0Pw" target="_blank" rel="noopener nofollow"><span><strong>Aire Exterior vs Recirculación</strong></span></a></li></ul></div></div></div></div><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=o0I1GauYi6c">Air Particulate Counter</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about an Air Particulate Counter, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/r9fs-jFWLi8" target="_blank" rel="noopener nofollow"><span><strong>Contadores de Partículas de Aire</strong></span></a></li></ul></div></div></div></div></div><div class="row"><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=J2b9_8VF6TQ">What is Filter Efficiency</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about filter efficiency and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/GwgHa7_ivMM" target="_blank" rel="noopener nofollow"><span><strong>¿Qué es la Eficiencia del Filtro?</strong></span></a></li></ul></div></div></div></div><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=cwEWiz5tlsQ">HVAC and Ventilation</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about HVAC, Ventilation, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/CqlpadH-MaQ" target="_blank" rel="noopener nofollow"><span><strong>Climatización y Ventilación</strong></span></a></li></ul></div></div></div></div><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=vE77YTR9RT8">Air Distribution</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about containing the spread, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/xVDYnPi9U88" target="_blank" rel="noopener nofollow"><span><strong>Distribución del Aire</strong></span></a></li></ul></div></div></div></div></div><div class="row"><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=kAbyc6eDTPc">Windows and Doors</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about windows, doors and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/jm6roM2fz74" target="_blank" rel="noopener nofollow"><span><strong>Ventanas y Puertas</strong></span></a></li></ul></div></div></div></div><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=hG2qBzdGT8c">UV Lights</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on how UV lights work and how they kill germs. To learn more about HVAC, Ventilation, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/0Pue50RyFw0" target="_blank" rel="noopener nofollow"><span><strong>Luz Ultravioleta</strong></span></a></li></ul></div></div></div></div><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=NQScJb0VR30">Colder Months</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on air circulation during colder months. To learn more about containing the spread, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/m9_BE1FTZ_U" target="_blank" rel="noopener nofollow"><span><strong>Meses Frios</strong></span></a></li></ul></div></div></div></div></div><div class="row"><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="//www.youtube.com/watch?v=TSus1dcYl7U">Containing the Spread</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about containing the spread and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/Y7rc9SAIF7E" target="_blank" rel="noopener nofollow"><span><strong>Contener la Propagación</strong></span></a></li></ul></div></div></div></div><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=gLSyAJCjPW8">OR Ventilation</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about OR Ventilation, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/Rz8cbxTYyCM" target="_blank" rel="noopener nofollow"><span><strong>Ventilación de Sala de Operaciones</strong></span></a></li></ul></div></div></div></div><div class="col-md-4"><div class="panel module-typeC"><div class="panel-body"><div></div><div class="row"><div class="col-md-12"><h4><a href="https://www.youtube.com/watch?v=BwWOHf6WHqw">Ceiling Plenum</a></h4></div></div><p>ASHE developed the Ventilation and Infection Control Video Series to build knowledge on why ventilation is critical in the health care built environment. To learn more about Ceiling Plenum, and implementing a multidisciplinary approach to infection control, click play.</p><div class="vc_Lead_Paragraph"><h4>Spanish Version</h4><ul><li><a href="https://youtu.be/MPsOp9GTSCs" target="_blank" rel="noopener nofollow"><span><strong>Pleno de Techo</strong></span></a></li></ul></div></div></div></div></div><hr><div><div class="col-sm-12 center_body"> center_Intro .... </p> --> center_Lead .... </p> --><a href="https://www.cdc.gov/infectioncontrol/projectfirstline/index.html"><img src="https://www.ashe.org/sites/default/files/2020-10/20_317262A_Capers_DHQP_ProjectFirstline_logo_FINAL_color.png" alt="Project Firstline | CDC's National Training Collaborative for Healthcare Infection Prevention & Control" width="554" height="248"></a><p class="text-align-center">The Project Firstline program is a national training collaborative led by the <a href="https://www.cdc.gov/" target="_blank">Centers for Disease Control and Prevention</a> (CDC) in partnership with the <a href="https://www.aha.org/" target="_blank">American Hospital Association</a> and the <a href="https://www.aha.org/center/hret" target="_blank">Health Research & Educational Trust</a> (HRET), an AHA 501(c)(3) nonprofit subsidiary.</p> Want to learn more about Project Firstline? Contact <a href="mailto:projectfirstline@aha.org?subject=Web inquiry: AHA: Project Firstline">ProjectFirstline@aha.org</a>. </p>--><p><em>Project Firstline is a national collaborative led by the U.S. Centers for Disease Control and Prevention (CDC) to provide infection control training and education to frontline healthcare workers and public health personnel. AHA is proud to partner with Project Firstline, as supported through Cooperative Agreement CDC-RFA-OT18-1802. CDC is an agency within the Department of Health and Human Services (HHS). The contents of this webpage do not necessarily represent the policies of CDC or HHS, and should not be considered an endorsement by the Federal Government.</em></p><p><em>This content was funded in part by a cooperative agreement with the Centers for Disease Control and Prevention (grant number CK20-2003). The Centers for Disease Control and Prevention is an agency within the Department of Health and Human Services (HHS). The contents of this resource do not necessarily represent the policy of CDC or HHS, and should not be considered an endorsement by the Federal Government.</em></p></div></div> Wed, 01 Dec 2021 10:36:06 -0600 Ventilation https://www.ashe.org/energytocare/sustainability-tips/kitchen-ventilation Thu, 21 Oct 2021 14:22:26 -0500 Ventilation https://www.ashe.org/standard170 Tue, 12 Oct 2021 09:40:24 -0500 Ventilation