Review on Efficient Replacement Pre Filters For Honeywell HPA300 Air Purifier - 6 Pack For Optimal Clean Air by Mike Flyers

Bought these because the ones I usually order were out of stock. These are very flimsy. Had a hard time getting them to even stay on the velcro in my air purifier because they are like working with thin flimsy tissue paper. I imagine they won't do much as far as filtering at all. Won't buy them again.