Colour: Blue Characteristics: Impermeable Reusable Reinforced Double-Layer Material Design: Children'S Duration: 25 Washes Bacterial Filtration Efficiency (Bfe): > 95 % Conforms To Regulations: Une 0065:2020 Properties: Effective Against Bacteria, Viruses And Other Pollutants In The Air Recommended Age: 10-12 Years Size: Children'S Type: Mask