Air Purifiers

i have allergies to dust and mold and bought an air purifier. i’m not sure if i am supposed to close my windows and doors when i use it. i am also not sure if i should always leave the house fan on to circulate air (or how often to use it). does anybody know how to circulate air and use an air purifier? (another question is how long to run the ionizer on the purifier or if i leave it on will the ozone be bad for me).

I hate dust. I hate dust. Everywhere I look in my house, there is dust. I have the windows and doors closed, yet, there is dust everywhere. I don’t even know where they came from. I was told that an air purifier collects most dust and so I wouldn’t have to clean as much. Air purifiers also help cleans the air in the house as well. I have an aging mother and kids and want to make sure they breathe clean air. From your experience and research, would you please let me know which is the best one, preferably something around 0 or less? I don’t even know where to start researching… Thanks all in advance!