マスクの本質は病原性微粒物質の体内侵入を極力防ぐことにあり、求められる仕様は次の２点です。
A１．高い濾過性能を持つ：微粒子濾過効率（PFE）99.9%（テスト機関：ネルソン研究所）
A２．エア漏れを最小限に抑えている：一般的にエア漏れが最も多い鼻梁部へのマスクの密着性を高めるために
本格ノーズピースの採用、マスク両側の密着性を高めるための本体構造の工夫とマスク本体外側へのゴムの溶着。
A３．濾過率が高い一方で呼吸がしづらくない：⊿ｐ値1.8mmH2O/? 以下（テスト機関：ネルソン研究所）
良いマスクであることには上記に加えて次の２つによる快適性が必要です。
B１．唇がマスクにつきにくい：設計上の工夫により達成
B２．内層（顔面側）が毛羽立立って痒みとか、酷い場合は爛れ等の皮膚トラブルを起こすことが本質的にない：皮膚刺激性ゼロを達成（テスト機関：ネルソン研究所）
B３．出荷前の全数オゾン消毒：衛生感の保持
| Product # | M101W |
|---|---|
| Weight | 188 g |
| Product package size | 10 x 8 x 18 cm |
| Specifications |
Three layers, Ear-loop type, Disposable Bacterial Filtration Efficiency: 99%+ (EN 14683) Expiratory resistance (⊿p) |
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