The conference's technical program featured more than 300 presentations, with interest surrounding this year’s new track, "Renewable and Natural Systems," where session topics included exploring energy technologies, renewable energy sources and the future of the smart grid.

HLR technology cleans a building’s indoor air at a nanoscopic molecular level, enabling the building to use far less outside air ventilation while improving indoor air quality.  

ASHRAE provided testimony focused on the technical tools, standards and guidelines it develops that can help government – and the private sector – deliver on energy efficiency and building performance.

Reports for 2018 are at an all-time high, with 44 percent of respondents reporting a significant sales increase of more than 10 percent year-on-year.

Guideline 12 is open for a 45-day public review until Dec. 17.