Like many reviewers, the HEPA filter fell **completely** in layers (when I first washed the filter). See photo from another buyer. It was held together in various places with a few tiny drops of glue that melted through the use of a vacuum. After the filter was dry I managed to put all the layers together (2 ill-fitting outer plastic meshes, 1 main inner filter, a plain blue outer frame with a red button and a black rubber pad), but the plastic meshes were small too. for the outer blue frameโฆ