Are you saying that’s a good thing? Maybe 20-year-olds shouldn’t be running government agencies.

Bill Gates is a tech entrepreneur and college drop out. His age, at least gives him experience and (hopefully) wisdom.

I read somewhere, the suggestion, that the filter be replaced when air flow has reduced by 50% from when the filter is new. IDK, that seems reasonable to me and should be measurable.

I have always replaced filters on a schedule, but it has always felt wasteful. Sometimes the filter is clearly dirty and sometimes it is not. I would like something more specific.

I will look into PMS7003.

Does he come from France?