I have several large HEPA filters running 100% of the time in my home. They work great. When it's really bad, I moisten the prefilter a little to grab more m

I have several large HEPA filters running 100% of the time in my home. They work great. When it's really bad, I moisten the prefilter a little to grab more material. If that is not enough, saline solution can be used to irrigate the sinuses and eye drops to flush the eyes.