I started buying these filters as soon as they came out. We always bought the 1000 but with my daughter having allergies, we stepped it up and started buying the 1500. She could breathe so much better. Parents, trust a parent. If your kids have any allergies, this filter will certainly help the issue. We have never bought another "cheap" filter since and we never will. These Filtrete filters leave everyone else out in the cold!! Thanks 3 M for such a wonderful product. You guys are top notch!!