AirSoap’s assert that it will save you “thousands” in the expense of replacement filters is ridiculous—you’d really need to replace the filter on the Coway Mighty 20 times to reach even $1,000, which means you’d have to operate it for two decades. Diffusion: Pretty high-quality particles measuring under 0.1 micron https://milodreqc.liberty-blog.com/26384317/sharper-image-air-purifier-lawsuit-no-further-a-mystery