Review on 🌬️ Enhance Air Quality with FilterBuy 18X30X1 Pleated Furnace Filters by Scott Welch

They definitely help filter out allergies and everything else! So much so that even air barely passes through these filters! I locked them out of my system because they literally suffocated my entire device. I've never heard my return make noise in front of these filters. As soon as I put this in, the vent whistled loudly and made a sucking noise so loud it woke my kids up! This might be a good filter for some devices but definitely not for me! I had to install an activated carbon filter.