[{"command":"settings","settings":{"basePath":"\/","pathPrefix":"","setHasJsCookie":0,"ajaxPageState":{"theme":"iaqa_u","theme_token":"AI6P9G4LkOvLgyAlIx5-xpsXpQe_jGp56manw8x79t4","jquery_version":"1.10"},"CToolsModal":{"loadingText":"Loading...","closeText":"Close Window","closeImage":"\u003Cimg typeof=\u0022foaf:Image\u0022 class=\u0022img-responsive\u0022 src=\u0022https:\/\/university.iaqa.org\/sites\/all\/modules\/contrib\/ctools\/images\/icon-close-window.png\u0022 alt=\u0022Close window\u0022 title=\u0022Close window\u0022 \/\u003E","throbber":"\u003Cimg typeof=\u0022foaf:Image\u0022 class=\u0022img-responsive\u0022 src=\u0022https:\/\/university.iaqa.org\/sites\/all\/modules\/contrib\/ctools\/images\/throbber.gif\u0022 alt=\u0022Loading\u0022 title=\u0022Loading...\u0022 \/\u003E"},"edu-modal-style":{"modalSize":{"type":"fixed","width":"auto","addHeight":700,"height":"auto"},"modalOptions":{"background-color":"black"},"closeText":"\u003Ci class=\u0022fa fa-times-circle\u0022 title=\u0022Close\u0022\u003E\u003C\/i\u003E","loadingText":"","modalTheme":"edu_modal_theme","animation":"fadeIn","animationSpeed":"medium","throbberTheme":"edu_modal_throbber"},"better_exposed_filters":{"views":{"course_modal":{"displays":{"block":{"filters":[]}}}}}},"merge":true},{"command":"modal_display","title":"Indoor Air Quality Assessments","output":"\u003Cdiv class=\u0022view view-course-modal view-id-course_modal view-display-id-block view-dom-id-c97e630172a1907c493998b8e3c4f261\u0022\u003E\n \n \n \n \u003Cdiv class=\u0022view-content\u0022\u003E\n \u003Cdiv class=\u0022views-row views-row-1 views-row-odd views-row-first views-row-last\u0022\u003E\n \n \u003Cdiv class=\u0022views-field views-field-field-edu-body\u0022\u003E \u003Cdiv class=\u0022field-content\u0022\u003E\u003Cp\u003EIn an effort to fully assess a home with an indoor air quality complaint we feel it is best to measure the homes basic indoor environmental conditions.\u00a0 These include the temperature, humidity, airborne particulates, formaldehyde, carbon dioxide, and volatile organic compounds.\u00a0 For these measurements we use handheld monitors to obtain onsite real time measurements.\u00a0 The measurements may also include additional components such as carbon monoxide, combustion gas, ozone, and refrigerants.\u00a0 These measurements are also collected onsite real time to establish the actual conditions of the home.\u00a0\u003C\/p\u003E\n\u003Cp\u003EWe begin our assessment by first measuring the home with the HVAC off for a few hours measure the above indoor environmental conditions with the home at rest and then we turn the HVAC on and let the system fully condition the home for a minimum of 45 minute and remeasure with the home while active.\u003C\/p\u003E\n\u003Cp\u003EIn a properly functioning home, that meets the ASHRAE ventilation rate and properly sized mechanical equipment; the active indoor environmental conditions should be less than at rest indoor environmental conditions of the home.\u00a0 The air handler while running will easily reduce the temperature; in addition, if properly sized, the air handler will easily reduce the indoor humidity.\u00a0 It\u2019s easy to see how conditioning (cooling or heating) the indoor air has a measurable and direct impact on the temperature and humidity of the indoor environment.\u00a0\u003C\/p\u003E\n\u003Cp\u003EThis is also true when it comes to all other indoor environmental conditions that we measure, airborne particulates, volatile organic compounds, etc\u2026.\u00a0 So, it stands to reason that if any of these indoor environmental conditions remain unchanged or become elevated, we have identified an action item or an area in need of improvement.\u003C\/p\u003E\n\u003Cp\u003EIf the home does not meet the minimum ventilation rate, we know that it\u2019s very likely that we\u2019ll see either no change or a rise in the measured conditions within a home.\u00a0 The issues become even clearer when there\u2019s an outdoor air supply that is not properly installed.\u00a0 For example, if the outdoor air supply is not pre-filtered, dehumidified, or dampered these two issues can easily elevate the indoor particulate levels or indoor humidity to the point of occupant complaint.\u003C\/p\u003E\n\u003Cp\u003ESo, for us the measurement and documentation of the indoor environmental conditions is the most important aspect of our \u201cinitial\u201d diagnostic assessment. The collection of these indoor environmental conditions and the comparing of the \u201cat rest\u201d levels to the \u201cactive\u201d levels is where we can begin to establish and identify any areas of concern or issues within the home.\u00a0 We often find that the home performs beautifully when active and all measured conditions with the home at rest began within the acceptable range and were further reduced when active.\u00a0 In these homes the ventilation system is working well and may require no changes.\u00a0\u003C\/p\u003E\n\u003Cp\u003EWith the collected data we can help our clients improve their indoor air quality and validate those improvements by remeasuring the home or office.\u003C\/p\u003E\n\u003Cp\u003EPresented by: John Lapotaire \u0026amp; Lydia Lapotaire\u003C\/p\u003E\n\u003C\/div\u003E \u003C\/div\u003E \u003C\/div\u003E\n \u003C\/div\u003E\n \n \n \n \n \n \n\u003C\/div\u003E"}]