I didn't know this much about filters before. Let's look at 2 situations. One is you are running the same air through the filter all day. The other is you ar

I didn't know this much about filters before. Let's look at 2 situations. One is you are running the same air through the filter all day. The other is you are using a vacuum cleaner that is sucking up dust from the floor and pumping out that air. I assume in the vacuum cleaner case, you are better off with a higher performing filter since you need to trap that dust on first pass through, whereas with the filter that is circulating the air all day, you get a "second chance" to capture a given particle?