• Filter is waterproof and has the ability to filter bacteria, viruses and particles.
• Filtration efficiency: BFE (bacteria filter) > 99%, VFE (virus filter) > 98%
• Elastic band has good elastic function, does not cause skin irritation
• The nose band is designed from an adjustable plastic frame so that the mask fits nicely.
• Meet medical standards (TCVN 8389-1)
• Quality standards and certifications: ISO 9001, ISO 13485, Vietnam Pharmacopoeia V, CE certification.