HPAC Engineering http://hpac.com/rss.xml en Report: Insulation Performance Dependent on Installation, not Material http://hpac.com/heating/report-insulation-performance-dependent-installation-not-material <div class="node-body article-body">A new study from Building Science Corp. demonstrates that all insulation products perform equally well when properly installed and air-sealed.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/heating/report-insulation-performance-dependent-installation-not-material" target="_blank">read more</a></p> http://hpac.com/heating/report-insulation-performance-dependent-installation-not-material#comments Air Conditioning Heating Tue, 01 Sep 2015 01:25:00 +0000 18141 at http://hpac.com Photo by Justin Sullivan/Getty Images Heating and Cooling of Glass Buildings Subject of Jaga White Paper http://hpac.com/heating/heating-and-cooling-glass-buildings-subject-jaga-white-paper <div class="node-body article-body">With more architects and developers opting to design buildings with glass exteriors, Jaga Climate Systems recently released a free white paper to highlight building-temperature challenges and ways to alleviate them.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/heating/heating-and-cooling-glass-buildings-subject-jaga-white-paper" target="_blank">read more</a></p> http://hpac.com/heating/heating-and-cooling-glass-buildings-subject-jaga-white-paper#comments Air Conditioning Heating Mon, 31 Aug 2015 22:35:00 +0000 18131 at http://hpac.com Calendar of HVACR Training and Education Events http://hpac.com/training/calendar-hvacr-training-and-education-events <div class="node-body article-body">Are you looking to expand your knowledge and/or sharpen your skills in a particular area of HVACR? Do you have certification requirements you need to meet? Here is a list of upcoming industry education and training events.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/training/calendar-hvacr-training-and-education-events" target="_blank">read more</a></p> http://hpac.com/training/calendar-hvacr-training-and-education-events#comments Air Conditioning AHR Expo Training Building Controls Fire / Smoke Heating Humidity Control IAQ & Ventilation Motors / Drives Piping / Pumping Mon, 31 Aug 2015 15:54:00 +0000 12391 at http://hpac.com ASHRAE Announces Fall 2015 Online Courses http://hpac.com/training/ashrae-announces-fall-2015-online-courses <div class="node-body article-body">ASHRAE Learning Institute is offering 10 online professional-development seminars focused on commissioning, environmental quality, energy efficiency, HVAC applications, and standards and guidelines this fall.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/training/ashrae-announces-fall-2015-online-courses" target="_blank">read more</a></p> http://hpac.com/training/ashrae-announces-fall-2015-online-courses#comments Air Conditioning Training Building Controls Heating Humidity Control IAQ & Ventilation Mon, 31 Aug 2015 14:58:00 +0000 18121 at http://hpac.com Adventures of Johnny Tundra, Cold-Weather Engineer: ‘Capitol Case’ http://hpac.com/galleries/adventures-johnny-tundra-cold-weather-engineer-capitol-case <div class="node-body gallery-body">On the eve of public hearings at the state capitol, Supervisor of Facilities Maintenance and Operations Hank Hoovestahl is facing a grilling worse than that of any witness: If he does not get the chiller serving the meeting rooms in the recently remodeled building running by noon the next day, Senate Majority Leader—and armchair engineer—Lester Heapleach vows to, shall we say, remove him from office. Luckily for Hank, he has the backing of his pal Johnny Tundra.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/galleries/adventures-johnny-tundra-cold-weather-engineer-capitol-case" target="_blank">read more</a></p> http://hpac.com/galleries/adventures-johnny-tundra-cold-weather-engineer-capitol-case#comments Air Conditioning Galleries Wed, 26 Aug 2015 20:21:00 +0000 18111 at http://hpac.com Distech Controls Announces Internet of Things (IoT) Building Events http://hpac.com/internet-things/distech-controls-announces-internet-things-iot-building-events <div class="node-body article-body">Distech Controls, provider of building-management technologies and services, recently announced the launch of the Connecting for the Internet of Things Building roadshow.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/internet-things/distech-controls-announces-internet-things-iot-building-events" target="_blank">read more</a></p> http://hpac.com/internet-things/distech-controls-announces-internet-things-iot-building-events#comments Internet of Things Building Controls Wed, 26 Aug 2015 01:52:00 +0000 18091 at http://hpac.com <p>zoom-zoom/iStock</p> Survey Goes Behind the Lines of Office HVAC ‘Thermostat Wars’ http://hpac.com/air-conditioning/survey-goes-behind-lines-office-hvac-thermostat-wars <div class="node-body article-body">Software Advice, provider of reviews and research on software applications, recently surveyed U.S. office workers to gauge employee preferences regarding office temperature, what temperature thermostats should be set to, and how new technology can provide an effective solution.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/air-conditioning/survey-goes-behind-lines-office-hvac-thermostat-wars" target="_blank">read more</a></p> http://hpac.com/air-conditioning/survey-goes-behind-lines-office-hvac-thermostat-wars#comments Air Conditioning Heating Tue, 25 Aug 2015 17:25:00 +0000 18081 at http://hpac.com Credit: Creatas Environmental Responsibility: It’s not Just a HVAC Issue http://hpac.com/blog/environmental-responsibility-it-s-not-just-hvac-issue <div class="node-body blog-body">Ozone depletion, fracking, sea-level rise—these are complex issues. If we’re to be good stewards of the planet, we need to better understand all sides of the arguments.</div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/clarks-remarks">Clark&#039;s Remarks</a></li> </ul></div><p><a href="http://hpac.com/blog/environmental-responsibility-it-s-not-just-hvac-issue" target="_blank">read more</a></p> http://hpac.com/blog/environmental-responsibility-it-s-not-just-hvac-issue#comments Archive Clark&#039;s Remarks Tue, 25 Aug 2015 13:57:00 +0000 18071 at http://hpac.com <p>bestdesigns/iStock</p> DOE Reports Highlight Trends of Growing U.S. Wind-Energy Industry http://hpac.com/archive/doe-reports-highlight-trends-growing-us-wind-energy-industry <div class="field-deck"> New installations usher in lowest wind-energy prices to date </div> <div class="node-body article-body">According to two reports recently released by the U.S. Energy Department, the U.S. wind-energy industry continued growing at an impressive rate in 2014.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/doe-reports-highlight-trends-growing-us-wind-energy-industry" target="_blank">read more</a></p> http://hpac.com/archive/doe-reports-highlight-trends-growing-us-wind-energy-industry#comments Archive Wed, 19 Aug 2015 20:22:00 +0000 18061 at http://hpac.com Photo by David McNew/Getty Images GALLERY: Vintage HVAC Advertisements, 1938 http://hpac.com/galleries/gallery-vintage-hvac-advertisements-1938 <div class="field-byline"> By ASHLEY M. DOLES </div> <div class="node-body article-body">Still in recession in 1938, the United States, looking to stabilize its economy, passed the Fair Labor Standards Act. Also that year, President Franklin Delano Roosevelt established the March of Dimes to fight polio, and Orson Wells' radio broadcast “War of the Worlds” created a nationwide panic and fear of an alien invasion. Here is a sampling of advertisements featured in HPAC Engineering in 1938.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/galleries/gallery-vintage-hvac-advertisements-1938" target="_blank">read more</a></p> http://hpac.com/galleries/gallery-vintage-hvac-advertisements-1938#comments Galleries Building Controls Heating Humidity Control IAQ & Ventilation Motors / Drives Piping / Pumping Wed, 19 Aug 2015 19:27:00 +0000 18021 at http://hpac.com ICC, ASHRAE Define Roles in Consolidation of IgCC, Standard 189.1 http://hpac.com/archive/icc-ashrae-define-roles-consolidation-igcc-standard-1891 <div class="node-body article-body">In a deal nearly two years in the making, the International Code Council and ASHRAE recently signed a final agreement defining roles in the development and maintenance of a new version of the International Green Construction Code.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/icc-ashrae-define-roles-consolidation-igcc-standard-1891" target="_blank">read more</a></p> http://hpac.com/archive/icc-ashrae-define-roles-consolidation-igcc-standard-1891#comments Archive Wed, 19 Aug 2015 18:45:00 +0000 18051 at http://hpac.com USGBC Announces Top 10 Countries for LEED Green Building Outside U.S. http://hpac.com/galleries/usgbc-announces-top-10-countries-leed-green-building-outside-us <div class="node-body gallery-body">The countries that made the list for 2015 are geographically and culturally diverse, representing seven of the world’s 20 largest single-nation economies by gross domestic product, as well as six of the top 11 emitters of greenhouse gases.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/galleries/usgbc-announces-top-10-countries-leed-green-building-outside-us" target="_blank">read more</a></p> http://hpac.com/galleries/usgbc-announces-top-10-countries-leed-green-building-outside-us#comments Galleries Wed, 19 Aug 2015 15:12:00 +0000 18041 at http://hpac.com <p>GYRO PHOTOGRAPHY/amanaimagesRF</p> Bell & Gossett Announces 2015 Q3 Little Red Schoolhouse Schedule http://hpac.com/piping-pumping/bell-gossett-announces-2015-q3-little-red-schoolhouse-schedule <div class="node-body article-body">Xylem Inc.’s Bell & Gossett brand recently announced the 2015 third-quarter schedule of systems-design training seminars for engineers, wholesalers, and contractors in the plumbing and hydronic heating and cooling industries held at its Little Red Schoolhouse learning center in Morton Grove, Ill.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/piping-pumping/bell-gossett-announces-2015-q3-little-red-schoolhouse-schedule" target="_blank">read more</a></p> http://hpac.com/piping-pumping/bell-gossett-announces-2015-q3-little-red-schoolhouse-schedule#comments Piping / Pumping Wed, 19 Aug 2015 02:48:00 +0000 18031 at http://hpac.com Gene Hurst, Founder of Hurst Boiler & Welding Co., Dies http://hpac.com/heating/gene-hurst-founder-hurst-boiler-welding-co-dies <div class="node-body article-body">Clifton Eugene “Gene” Hurst, founder of Hurst Boiler & Welding Co., died July 22 at the age of 79, the company announced today.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/heating/gene-hurst-founder-hurst-boiler-welding-co-dies" target="_blank">read more</a></p> http://hpac.com/heating/gene-hurst-founder-hurst-boiler-welding-co-dies#comments Heating Tue, 18 Aug 2015 19:33:00 +0000 18011 at http://hpac.com GALLERY: Most Popular HPAC Engineering Fire- and Smoke-Control Content http://hpac.com/fire-smoke/gallery-most-popular-hpac-engineering-fire-and-smoke-control-content <div class="node-body gallery-body">Looking to broaden and deepen your knowledge about fire and smoke control? Here is your guide to HPAC Engineering's most-viewed fire-and-smoke-related content.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/fire-smoke/gallery-most-popular-hpac-engineering-fire-and-smoke-control-content" target="_blank">read more</a></p> http://hpac.com/fire-smoke/gallery-most-popular-hpac-engineering-fire-and-smoke-control-content#comments Galleries Fire / Smoke Tue, 18 Aug 2015 13:29:00 +0000 18001 at http://hpac.com Central-Plant Optimization and Maintenance http://hpac.com/air-conditioning/central-plant-optimization-and-maintenance <div class="field-byline"> By DAVID YANCOSKY, P2S Engineering Inc., Long Beach, Calif. </div> <div class="field-deck"> Working with an engineering firm or outside expert to develop a long-term plan </div> <div class="node-body article-body">One of the most important contributors to the long-term success of a central plant are maintenance standards and training that truly meet the needs of end users and operators. Unfortunately, development of these standards and training often is bypassed in the name of cost saving, much to the detriment of both the central plant’s and overall facility’s energy-efficiency goals.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/air-conditioning/central-plant-optimization-and-maintenance" target="_blank">read more</a></p> http://hpac.com/air-conditioning/central-plant-optimization-and-maintenance#comments Air Conditioning Heating Fri, 14 Aug 2015 13:30:00 +0000 17991 at http://hpac.com Mathisa_s/iStock Uponor Compares Material and Labor Costs of Five Pipe-System Types http://hpac.com/piping-pumping/uponor-compares-material-and-labor-costs-five-pipe-system-types <div class="node-body article-body">Uponor, provider of cross-linked polyethylene (PEX) plumbing, indoor-climate, and fire-safety systems for residential and commercial buildings, recently completed a study comparing the cost-effectiveness of five types of plumbing piping for a multifamily building.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/piping-pumping/uponor-compares-material-and-labor-costs-five-pipe-system-types" target="_blank">read more</a></p> http://hpac.com/piping-pumping/uponor-compares-material-and-labor-costs-five-pipe-system-types#comments Piping / Pumping Wed, 12 Aug 2015 15:14:00 +0000 17981 at http://hpac.com <p>tovovan/iStock</p> Daikin Applied Roadshow Offers Rooftop-Unit Demos, IoT Discussion http://hpac.com/internet-things/daikin-applied-roadshow-offers-rooftop-unit-demos-iot-discussion <div class="node-body article-body">Daikin Applied’s 2015 Ideas in Motion roadshow will visit 11 communities across the country with programming for contractors, specifying engineers, and building owners.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/internet-things/daikin-applied-roadshow-offers-rooftop-unit-demos-iot-discussion" target="_blank">read more</a></p> http://hpac.com/internet-things/daikin-applied-roadshow-offers-rooftop-unit-demos-iot-discussion#comments Air Conditioning Internet of Things Heating IAQ & Ventilation Wed, 12 Aug 2015 04:01:00 +0000 17971 at http://hpac.com The Birds and the Bees—and the Btus—of Air Curtains http://hpac.com/blog/birds-and-bees-and-btus-air-curtains <div class="node-body blog-body">Air curtains often are used on frequently opened doors in health-care and food-preparation facilities to keep out bugs and birds. Although this application is not intended to save energy, there nevertheless will be some energy-use reduction if a protected space is heated or cooled.</div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/clarks-remarks">Clark&#039;s Remarks</a></li> </ul></div><p><a href="http://hpac.com/blog/birds-and-bees-and-btus-air-curtains" target="_blank">read more</a></p> http://hpac.com/blog/birds-and-bees-and-btus-air-curtains#comments IAQ & Ventilation Clark&#039;s Remarks Wed, 12 Aug 2015 02:16:00 +0000 17961 at http://hpac.com <p>Photo by Matt Cardy/Getty Images</p> Proposed Facility Smart-Grid Model Standard Open for Public Review http://hpac.com/archive/proposed-facility-smart-grid-model-standard-open-public-review <div class="node-body article-body">A proposed standard from ASHRAE and the National Electrical Manufacturers Association (NEMA) to create smart facilities supporting smart grids will be open for public review until Oct. 6, 2015.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/proposed-facility-smart-grid-model-standard-open-public-review" target="_blank">read more</a></p> http://hpac.com/archive/proposed-facility-smart-grid-model-standard-open-public-review#comments Archive Tue, 11 Aug 2015 21:20:00 +0000 17951 at http://hpac.com HVACR Ultraviolet-Treatment Pioneer Forrest Fencl Dies http://hpac.com/air-conditioning/hvacr-ultraviolet-treatment-pioneer-forrest-fencl-dies <div class="node-body article-body">Forrest B. Fencl, pioneer of the modern application of ultraviolet germicidal irradiation (UV-C) in HVACR equipment, died at his home in Huntington Beach, Calif., Aug. 1 after a battle with cancer. He was 72 years old.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/air-conditioning/hvacr-ultraviolet-treatment-pioneer-forrest-fencl-dies" target="_blank">read more</a></p> http://hpac.com/air-conditioning/hvacr-ultraviolet-treatment-pioneer-forrest-fencl-dies#comments Air Conditioning Heating IAQ & Ventilation Sat, 08 Aug 2015 01:00:00 +0000 17941 at http://hpac.com ASHRAE Legionellosis Standard Covers Water-System Risk Management http://hpac.com/air-conditioning/ashrae-legionellosis-standard-covers-water-system-risk-management <div class="node-body article-body">ASHRAE recently announced the publication of ANSI/ASHRAE Standard 188-2015, Legionellosis: Risk Management for Building Water Systems.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/air-conditioning/ashrae-legionellosis-standard-covers-water-system-risk-management" target="_blank">read more</a></p> http://hpac.com/air-conditioning/ashrae-legionellosis-standard-covers-water-system-risk-management#comments Air Conditioning Mon, 03 Aug 2015 18:30:00 +0000 17911 at http://hpac.com 'Lunching and Learning': Food for Thought on Campus Chilled-Water Design http://hpac.com/blog/lunching-and-learning-food-thought-campus-chilled-water-design <div class="node-body blog-body">In "Lunching and Learning: A Civil Engineer’s View of a Campus Chilled-Water System," a fictional conversation about a system that may or may not be in existence is presented to, in the words of the author, “plant the seed of an idea with people (who) might actually implement” it and start a (real) discussion. </div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/scott-arnolds-blog">Scott Arnold&#039;s Blog</a></li> </ul></div><p><a href="http://hpac.com/blog/lunching-and-learning-food-thought-campus-chilled-water-design" target="_blank">read more</a></p> http://hpac.com/blog/lunching-and-learning-food-thought-campus-chilled-water-design#comments Air Conditioning Scott Arnold&#039;s Blog Sun, 02 Aug 2015 22:44:00 +0000 17901 at http://hpac.com Lunching and Learning: A Civil Engineer’s View of a Campus Chilled-Water System http://hpac.com/air-conditioning/lunching-and-learning-civil-engineer-s-view-campus-chilled-water-system <div class="field-byline"> By JEFFREY NEWCOMB, PE, MBA, LEED AP; IEFM Consulting Engineers; Coal Valley, Ill. </div> <div class="field-deck"> A mechanical engineer gains a new perspective on his design </div> <div class="node-body article-body">Fred, a mechanical engineer, was bursting to tell William, a civil engineer, all about his design for a new campus chilled-water system. They had been friends for years and met weekly for lunch at their favorite restaurant.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/air-conditioning/lunching-and-learning-civil-engineer-s-view-campus-chilled-water-system" target="_blank">read more</a></p> http://hpac.com/air-conditioning/lunching-and-learning-civil-engineer-s-view-campus-chilled-water-system#comments Air Conditioning Sun, 02 Aug 2015 21:55:00 +0000 17891 at http://hpac.com Minimizing Ammonia Charge in Industrial Refrigeration Systems, Part 1 of 2 http://hpac.com/archive/minimizing-ammonia-charge-industrial-refrigeration-systems-part-1-2 <div class="field-byline"> By TERRY L. CHAPP, PE, Danfoss, Baltimore, Md. </div> <div class="node-body article-body">Over the last decade, ammonia (NH3) has come under increased scrutiny from regulatory authorities, communities, and insurance providers, leading public-refrigerated-warehouse owners to reach out to engineers, contractors, and equipment suppliers for new and innovative ways to minimize their NH3-system charges.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/minimizing-ammonia-charge-industrial-refrigeration-systems-part-1-2" target="_blank">read more</a></p> http://hpac.com/archive/minimizing-ammonia-charge-industrial-refrigeration-systems-part-1-2#comments Archive Fri, 31 Jul 2015 19:58:00 +0000 17881 at http://hpac.com KatarzynaBialasiewicz/iStock Geothermal Heating and Cooling Plays Key Role in Urban-Reuse Project http://hpac.com/heating/geothermal-heating-and-cooling-plays-key-role-urban-reuse-project <div class="field-byline"> By CLIMATEMASTER </div> <div class="field-deck"> Manufacturing and warehouse facilities turned into green space, arts complex </div> <div class="node-body article-body">Once the site of manufacturing and warehouse facilities, Guthrie Green is a public green space and arts complex in downtown Tulsa, Okla., that serves as a testament to sustainability. Perhaps Guthrie Green’s “greenest” feature lies below the grass, benches, and stage. This is where a field of 120 500-ft geothermal boreholes was drilled prior to the above-ground construction.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/heating/geothermal-heating-and-cooling-plays-key-role-urban-reuse-project" target="_blank">read more</a></p> http://hpac.com/heating/geothermal-heating-and-cooling-plays-key-role-urban-reuse-project#comments Air Conditioning Heating Fri, 31 Jul 2015 19:28:00 +0000 17871 at http://hpac.com Taco Introduces Viridian 3452 ECM Circulator for Commercial Systems http://hpac.com/new-products/taco-introduces-viridian-3452-ecm-circulator-commercial-systems <div class="node-body article-body">Taco’s VR3452 variable-speed circulator features an extended operating range, making it well-suited for a wide variety of chilled- and hot-water applications.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/new-products/taco-introduces-viridian-3452-ecm-circulator-commercial-systems" target="_blank">read more</a></p> http://hpac.com/new-products/taco-introduces-viridian-3452-ecm-circulator-commercial-systems#comments New Products Products Piping / Pumping Fri, 31 Jul 2015 04:00:00 +0000 17861 at http://hpac.com Grundfos Introduces LCSE Integrated Pump Motor, Drive, and Control http://hpac.com/new-products/grundfos-introduces-lcse-integrated-pump-motor-drive-and-control <div class="node-body article-body">Grundfos Pumps Corp.'s LCSE split-coupled end-suction pumps with integrated motor, drive, and control offer energy savings of up to 50 percent.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/new-products/grundfos-introduces-lcse-integrated-pump-motor-drive-and-control" target="_blank">read more</a></p> http://hpac.com/new-products/grundfos-introduces-lcse-integrated-pump-motor-drive-and-control#comments New Products Products Piping / Pumping Fri, 31 Jul 2015 02:52:00 +0000 17851 at http://hpac.com GALLERY: Energy-Efficient Air-Movement and Control Products From Greenheck http://hpac.com/products/gallery-energy-efficient-air-movement-and-control-products-greenheck <div class="node-body gallery-body">By carefully analyzing LEED certification guidelines, as well as pertinent ASHRAE requirements and local codes, Greenheck has developed a list of products that can support building designers’ efforts to achieve sustainability and energy efficiency.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/products/gallery-energy-efficient-air-movement-and-control-products-greenheck" target="_blank">read more</a></p> http://hpac.com/products/gallery-energy-efficient-air-movement-and-control-products-greenheck#comments Galleries Products IAQ & Ventilation Thu, 30 Jul 2015 12:18:00 +0000 17681 at http://hpac.com Free Webinar on HVAC Energy-Efficiency Benefits of Humidity Measurement http://hpac.com/humidity-control/free-webinar-hvac-energy-efficiency-benefits-humidity-measurement <div class="node-body article-body">Accurate measurement of relative humidity and temperature is critical to the optimization of HVAC performance. If the readings of outdoor and/or indoor humidity sensors are off, both energy efficiency and human comfort may be compromised.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/humidity-control/free-webinar-hvac-energy-efficiency-benefits-humidity-measurement" target="_blank">read more</a></p> http://hpac.com/humidity-control/free-webinar-hvac-energy-efficiency-benefits-humidity-measurement#comments Humidity Control Wed, 29 Jul 2015 02:47:00 +0000 17841 at http://hpac.com Tashatuvango/iStock