MA-40

So, I have been on this crazy train for multiple months now and here are the things that have helped me, maybe a few can help you. Get a respirator that fits your face well and the high grade particulate, organics and chemical filters. I use these 3M filters https://a.co/d/8Ez3gb6 with this mask htt

I recently bought a medify ma-40 frist it was working wonders then after 3 weeks It stopped clearing the dust in the air that it had previously cleared, i could literally feel the dust in my troat which previously wasnt there or had been reduced greatly by the purifier, but now its back to previous