Answer:2021 recommended the following three fresh air filters, which I personally think are quite good, and I hope they can help you.1. Unifil AC.FFU.0402 air filter 2, unifil HORO – P-H13-0592059229031 air filter 3, unifil HORO – P
Answer:The following three types of fresh air filters are recommended for 2021. I think they are relatively easy to use. I hope they can help you.1. Unifil HORO1 - A-U153-1030063511030 filter 2, unifil HORO-Y-A-H14-1220091509530 high efficiency filter 3, uni