Can I wash and reuse my air purifier filters?
I have a Honeywell air purifier. I washed the carbon pre-filter and the inside HEPA filter. I just read though that you are not supposed to reuse these. Can anyone tell me why? It seems that they should still be usable.

Adding water to the bacteria, mold, mildew and other organic matter that has been trapped in your filters will cause them to grow extremely fast. There is no way to kill 100% of the living matter in the filter. When it starts to multiply, it will clog the filter or your air filtration system will blow it back into your home. Don’t ever reuse HEPA style filters.
There are MUCH better air purification systems available than the HEPA syle filtration machines. The best are "active" purifiers vs. the "passive" syle. Active units can purify the air in a home even when it doesn’t pass through the unit. Passive units only treat the air that actually enters and passes through its filters or over the plates. I highly recommend the active style of purifier.
i am in the wrong question
i have a clean air purifier and i buy my filters 1 every 6 months you cannot wash the filters don’t you see they are discustingly dirty and dusty i would not clean them you cant without them falling apart.anyway your not supposed to clean them your supposed to throw them away do as they say they will not work right or you will end up breaking your purifier.
They seem like they should be reusable, but there are may particles that accumulate on the filters that are not seen. The safest bet is to replace them when necessary.