Typical "this is the obvious solution" thinking without stopping to think about why it doesn't work like that in the majority of situations.
Most office buildings are giant rectangular blobs. The vast majority of people are not near a window. Most skyscrapers don't even have windows that can be opened.
Most manufacturing, processing, distribution jobs etc are in large warehouses. No windows near anybody. Same with a huge number of other blue-collar jobs like groceries and retail.
Even in buildings where windows can be opened, you're throwing potentially thousands of dollars worth of heating out the window half the year, and thousands of dollars in cooling the other half.
So don't just look around your own room, see the window, and say "hey, there's an obvious $20 solution to this, why didn't all these ventilation experts ask me?"
Dismissing a cheap and obvious solution that can work for a lot of cases because it's not perfect in every case is leaving a lot on the table!
Did you realize that we're in a pandemic that's killing millions of people? We need to get R0 down in any way that we can. Masks aren't perfect. Vaccines aren't perfect. We need to use everything we've got.
Most office buildings are giant rectangular blobs. The vast majority of people are not near a window. Most skyscrapers don't even have windows that can be opened.
Most manufacturing, processing, distribution jobs etc are in large warehouses. No windows near anybody. Same with a huge number of other blue-collar jobs like groceries and retail.
Even in buildings where windows can be opened, you're throwing potentially thousands of dollars worth of heating out the window half the year, and thousands of dollars in cooling the other half.
So don't just look around your own room, see the window, and say "hey, there's an obvious $20 solution to this, why didn't all these ventilation experts ask me?"