Back in early April before much of the country had started wearing masks, we made an episode

about why we should.

I spoke to Harvard professor Joe Allen, who specializes in indoor air quality.

Yeah, that's interesting.

I forgot.

That was the early days of mask wearing, right?

And I came out with a piece that said, you know, the debate is over.

Which we're a mask at the time that seemed controversial.

And now I think hopefully everyone realizes that's not so controversial.

It might be our best way out of this mask.

But the same thing, I think we're at the similar place now with our buildings as we

were with masks back in April.

Joe's not talking about putting masks on our buildings.

He's talking about ventilation.

The number one risk factor is time spent indoors.

In fact, almost every outbreak of three more people is associated with time spent indoors.

I think the world is just starting to wake up to the fact that airborne transmission

is happening.

And now that they're waking up, it's a realization that, whoa, the building actually matters.

People are starting to say, we better pay attention to things like ventilation and filtration.

Okay.

Ventilation and filtration.

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