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TENGFEI TECHNOLOGYlink |
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Box of 20 pieces
• Inhalation: 30 l/min% = 0.7
• Inhalation: 95 l/min% = 2.4
• Exhalation: 160 l/min% = 3.0
• Penetration of filter material: = 6%
• Size unfolded: 21.4 × 16 cm
• Size folded: 10.7 × 16 cm