Air filters

We have no pets at home. If we have it would probably difficult for me since i am too sensitive with their fury. Husband said air filters may help but i just don't really care about having pets at home. I am even paranoid with the dust. I know when is the time to change the air filters and thats when i sneezed often. Yeah silly me. That's why husband stored many packs of air filters to avoid the chaos. I just can't handle the fact that the air circulating in the house is polluted. Who does anyway? I have a child and air filters is become neccesity for us.