Jim Spears
![Jim Spears](/assets/img/authors/unknown.jpg)
Jim Spears
air bad bringing constant fresh high might particular pump pumped though trying
What they're doing is, they're bringing in fresh air and trying to pump out the bad air, and that's constant in the air filtration system, so, in this particular case, even though there are high levels, as long as that fresh air is being pumped in, you never know where you might find it.