Review on LEVOIT LV-H132 Air Purifier Replacement Filter - 3-in-1 Pre-Filter, True HEPA & Activated Carbon - 1 Pack by Yung Kitamura

How does the filter work? I could have sworn it was for filtering. After a few days I found that these filters did not match my previous batch. I tried giving it time (more than a month) with both tested filters but they don't seem to filter anything. I have a husky pet, but I can tell a difference in air quality and smell when using the original filters. They don't help with air clarity or smell. Very disappointing. There is no return, exchange or refund option at the moment but I would consider exchanging for a new pair to compare the quality. This could be a quality control issue, but the number of counterfeits originating from Revain is too high to ignore.