by Haglid Engineering | May 1, 2024 | ASHRAE Standard 241, High-Efficiency HVAC, Indoor Air Quality, Patheogens, School Building, ventilation
Do the school buildings you lead, manage, contract for, maintain, or sell HVAC equipment to meet ASHRAE Standard 62.1 for Ventilation and Acceptable Indoor Air Quality? If not, that building is already a health and well-being threat to students and faculty. As if...
by Haglid Engineering | Apr 18, 2023 | energy efficiency, Energy Recovery, Indoor Air Quality, ventilation
Still hanging onto that gas stove? You rebel! But should you? Well, that depends on some questions and considerations we have for you. Gas Stove Health Issues We began to research this article under the assumptions that 1) older gas stoves were more of a health...
by Haglid Engineering | Nov 16, 2022 | Classroom Health, Corsi-Rosenthal boxes, COVID-19, Energy Recovery, ERV, HVAC, School Ventillation, ventilation
Do you have an uncomfortable indoor air story in your past and perhaps your present? Sure, you do. Was it a stifling classroom in the heat of summer and a freezing one in winter? Did you fight a sleepy, lethargic malaise while taking a test in high school? As an...
by Haglid Engineering | Oct 4, 2022 | COVID-19, IAQ, Indoor Air Quality, ventilation, Ventilation Systems
As the premiere indoor threat to our health, Covid-19 often tops HVAC conversations–especially since there is no definitive method to detect its viral load in the air. And while the virus is nothing to make light of, it’s not as if many buildings weren’t in dire...
by Haglid Engineering | Jun 2, 2022 | Climate, COVID-19, Energy Recovery Ventilators, EPA, Indoor Air Quality, Long Ass ERV, ventilation
Okay, so it isn’t exactly our challenge; technically, the Clean Air in Buildings Challenge comes from the EPA and the White House. We do stand behind it, however, and we certainly enjoy helping building owners and managers heed the call. When COVID-19 came along, more...
by Haglid Engineering | Jan 28, 2022 | America Rescue Plan, COVID-19, Energy Efficient, Healthy Schools, School HVAC, ventilation
The American Society of Civil Engineers’ 2021 Infrastructure Report Card gave the United States’ public school building stock (K-12) a D+–the same grade garnered in 2017. With many buildings aging past fifty years, vital facility repairs are many and corrective...