Doug Engel

Husband. Father of 2 lovely girls. Believe "The most important shot in golf is the next one". Tweets are my own.

[enVerid Systems @enverid]

In @BetterBldgsDOE webinar @WBahnfleth updates Ventilation/Filtration/Air Cleaning:

“It’s not necessary to increase outdoor air by a huge amt to reduce exposure indoors if you can do it by some other means that may be less expensive or energy intensive.”
https://t.co/8lBVKXw6a0

[enVerid Systems @enverid]

"Once we get to the other side of the pandemic, we need to refocus on lessening the carbon footprint of buildings. We will continue to be in the forefront of the ESG transition in buildings. The energy that can be saved is truly game changing." https://t.co/EsXPTPp6wv @worthmag

[enVerid Systems @enverid]

Don't miss @facilityexec Dec issue. Highlighting an important read: @DougEngel1's article "Indoor Air Quality & the Pandemic" that digs into risk, energy use & #carbon impacts of different commercial HVAC COVID-19 mitigation strategies.
https://t.co/q13MkIDiOt #IAQ #IAQP #HVAC

[enVerid Systems @enverid]

Our IAQ/Covid19 webinar series starts 10/8 @ 2pm w/ Luke Leung, Chair of ASHRAE’s Epidemic Task Force, Commercial Buildings.
Strategies to optimize OA ventilation & advanced filtration to achieve highest levels of protection at the lowest cost.
Register: https://t.co/ODGhvrgYrl

[enVerid Systems @enverid]

Expert advice is evolving, with high-efficiency filtration seen as effective as outside air ventilation.

"The Healthy Buildings Program recommends a min. of 30 cubic feet per minute of fresh OR highly-filtered air per person." @j_g_allen

#covid19 #IAQ

https://t.co/Hqol9OPt3W

[enVerid Systems @enverid]

Interesting chart from @RockyMtnInst "The Impact of Fossil Fuels in Buildings" (Dec. 2019)

[enVerid Systems @enverid]

"Upgrading air filtration should help prevent the spread of coronavirus in schools, when used in concert with other precautions. Even after this pandemic subsides, investing in IAQ helps students, according to several studies." https://t.co/oUhgBHNhws #IAQ #IAQP #filtration

[enVerid Systems @enverid]

Weighing portables vs. robust, in-room air filtration?
The enVerid Air Purifier is ceiling-mounted, which offers center of room location - preferred for maximizing air cleaning. No pesky cords/units to clutter conference room, classroom or store. https://t.co/7TDsInJoBf @NYREJ

[enVerid Systems @enverid]

Local filtration in classrooms is critical:
"...in aging schools nationwide, strengthening ventilation may be difficult. About 41% of US public-school districts need to update/replace their HVAC systems in at least ½ their schools" = 36,000 schools
https://t.co/f26kJIpX2V

[enVerid Systems @enverid]

While maximizing outside air ventilation dilutes the air, advanced filtration is more effective at capturing the virus, and is a more affordable and energy-efficient approach. Our video offers a non-technical walk-thru of the differences of the two approaches:

[enVerid Systems @enverid]

In its Comm. Guide update, ASHRAE’s Epidemic Task Force acknowledges energy penalty of increased OA ventilation. Recommends that if energy costs of maximum OA ventilation are a concern, instead use minimal OA vent. combined w/ high-efficiency filtration. https://t.co/jRnrZP2gZz

[enVerid Systems @enverid]

"This localized filtration solution offers a way to ensure healthy #IAQ w/out the significant expense of upgrading HVAC systems & the 'energy penalty' associated with conditioning higher volumes of outside air."
enVerid Air Purifier @facilityexec #HVAC https://t.co/te93X5r71n

[enVerid Systems @enverid]

We are committed to keeping schools, offices & stores safe from COVID-19. Our new enVerid Air Purifier, a high-efficiency filtration + #UVGI system, has been shown to capture 99.99% of airborne viruses including a surrogate for the #COVID19 virus. #IAQ
https://t.co/izwo1iFHOz

[enVerid Systems @enverid]

The efficacy of our new enVerid Air Purifier is verified by independent lab testing. Our high-efficiency filtration + #UVGI product captures 99.99% of aerosol viruses, including the surrogate for COVID-19. Ideal for classrooms, offices & retail settings. https://t.co/gH9CUqfr1A

[enVerid Systems @enverid]

Proud to be @Breakthrough portfolio company, and be affiliated with so many extraordinary cleantech innovators. @75f_io @NatelEnergy @CFS_energy @FormEnergyInc

@BenjiSJones @businessinsider
https://t.co/oz9DpFR1rY

[enVerid Systems @enverid]

Glad that @ashraenews & @NYSERDA to offer #HVAC guidance addressing COVID19, energy usage & carbon emissions. #LocalLaw97 is a big concern for NYC commercial buildings post pandemic.
#IAQP & #HLR air scrubbing & high filtration = IAQ, reduced energy & carbon footprint @sam_or_i

[enVerid Systems @enverid]

Our article in @esmagazine demonstrates why high-efficiency filtration is preferred #HVAC strategy for mitigating airborne transmission of #COVID19 than increased outside air ventilation #IAQP #IAQ #HLR https://t.co/sVoforRYjj

[enVerid Systems @enverid]

“You can achieve air change by 1 of 2 ways: 1st thru the gross changeout of air, bringing in outside air & exhausting air from the room. Or by using high-efficiency filters that effectively remove virus-containing particles from the air.” @KaleighRogers
https://t.co/mnhm7wnMc7

[enVerid Systems @enverid]

Important story @KonradPutzier - Increased #HVAC ventilation in response to #COVID19 adds significant carbon & $$ impacts. "Property owners can make air in buildings cleaner without a surge in energy costs by installing more advanced filters." @WSJ @IAQ https://t.co/lZKrCJDlRI

[enVerid Systems @enverid]

Our COVID-19 ##HVAC guidance: High efficiency #filtration as effective at mitigating airborne transmission in commercial settings as increased OA ventilation, but at a far lower cost. #IAQP #HLR Link to whitepaper in release. https://t.co/lSgE1ilpkK