| 摘要 |
<p>A multilayer pocket handkerchief, with improved hygiene, is such that during sneezing (a) the nose is located between two partially connected handkerchief layers and (b) aerosol-containing expelled air flows between the layers and preferably (after utilizing the filtration effect to remove aerosols) escapes from openings provided at the side and bottom (rather than only upwards).</p> |
