By Phill Snel |
October 21, 2021 | Comments Off on Prof. Jeffrey Siegel | As temperatures drop, the battle between Delta and vaccines moves to a new arena: indoors
By Phill Snel |
October 12, 2021 | Comments Off on Prof. Jeffrey Siegel | Parents are reportedly sneaking $250 monitors into their kids’ schools to test air quality. One company says sales have doubled.
By Phill Snel |
October 12, 2021 | Comments Off on Prof. Jeffrey Siegel | Why a top notch air exchanger is way more effective than Plexiglas when it comes to good ventilation