My experience from west coast wildfires and taking indoor air pollution measurements is if I put 3 air purifiers in one master bedroom and keep the windows and doors closed I can go from code purple air outside to code orange air inside… So it’s not perfect, but it does kind of work if you’re in a situation where you can’t integrate a positive air pressure system.
Something would seem to be wrong in your situation then, just one should be enough to get it to green if windows and doors are closed.
Not sure if your filters need to be replaced, if you need to wipe dust off their exteriors, or something is just wrong with their airflow that they're not filtering.
A $100 Levoit purifier (the longtime Amazon bestseller) has been keeping my bedroom in the green (measured by an Awair) while it's been maroon (400+) AQI outside today here in NYC.
Radon is interesting because not a lot of people think about it, yet it's very dangerous. It's almost everywhere in France, Germany and Scandinavia. If you don't have anti-radon measures in the mentioned countries, high chances are levels are exceeding the limit.
You can get activated charcoal filters to help. But just having positive pressure (ideally with the intake vent a decent distance from the ground, since radon is quite a lot heavier than air) should help, because radon usually seeps in through the foundation due to pressure in the ground, and the fact that lower levels of houses are often natural at a slight negative pressure.
Yes, as someone who has done volunteer telemarketing, we mark the call status. For example if you’re angry/rude, non-English speaking, disconnected, etc. Campaign managers can then target call sheets accordingly (e.g. for a Spanish-speaking line, have the Spanish team do a follow up call).
The “quiet car” on medium-haul passenger rail routes (e.g. Acela in the US.) or a sleeper car on long-haul rail or a first class “private room” on airlines like Emirates.
In the Netherlands the quiet car is the worst because all you hear is the antisocial people ignoring the signs. At least in the other cars they are drowned out by the normal people.
> I have a well paying job now, and I am pretty sure I would throw my marriage into chaos if I told my wife I was leaving my job to pursue a start up.
This is a conversation you should have with your spouse. Many spouses go back to school or pursue a financially risky entrepreneurial path. The other spouse supports the family. I've also seen this blow up, as the fiancee/spouse that supported the partner gets dumped after shortly after success... If you do this, I strongly encourage you to offer your spouse a generous postnuptial agreement (i.e. more than CA family law defaults to.)
In London security will sometimes specifically ask if you or anyone else has made repairs or modifications to any electronics. Depending on how honestly you answer, this could still be a hassle.
I have seen legacy companies with security rules so tight they can’t ship anything cool. On the flip side are legacy companies that ship great user experiences, but apparently just totally ignore the security people. Does the security professions have a “human centric security design” capability? It’s something the non-tech Fortune 500s to desperately need.
I have the latest iPhone 13 Pro Max, shoot RAW and with acoustic filters mounted on my phone and what not. Both my photos and iPhone photos that I’ve seen at “iPhone photography” art exhibits are clearly lower quality.
Now one could argue about whether the tiny censors on smartphones in of itself is just another dimension of artistic expression.
But my personal aesthetic preference as a hobbyist photographer and art consumer is that unintentional censor noise is not good.
Imagine the rabbis at Hebrew National were out sick, but Hebrew National continued churning out “Kosher hotdogs” that hadn’t been properly vetted.
Sure it’s still a hotdog made with kosher ingredients. But it’s a major violation of trust. And trust is what consumers expect when flying.