I have a portable Honeywell air purifier, model 110, which per Owners Guide, uses a 19700 HEPA filter. The sides of this filter are smaller than the original 19700 HEPA filter. It is not big enough to completely cover the frame that it rests against. Consequently, at best, it is not as air tight as the original, and at worst, if filter slipped when I was attempting to shut the case, there may be a gap that admits and then blows out unfiltered air.Save 49% Off
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