KN95 Mask Protect yourself & prevent droplet transmission to and from other individuals COVID-19 and the necessity of Medical masks Speed of air flow : Cough v=10 m/s Sneeze v=50 m/s Small droplets <10µ
hoest Uitademen
Large Droplets >100µ
Sneeze
Uitademen hoest tot 1,5m 2m niezen tot 6m
Cough & sneeze aerosols containing detectable amounts of virus
Naso-pharynx pharynx 4,7 - 7µ
Par cles or aerosols> 10 µ get stuck in the upper airways keel are blocked by a medical primaire bronchus mask PFE> 90% 3,3-4,7µ bronchus 2,1-3,3 µ terminal bronchus 1,1-2,1 µ
Par cles or aerosols <1µ reach into the alveolae and can only be completely blocked by a KN95 mask with BFE> 98% & PFE> 95%
alveolae 0,6-1,1µ
Effec ve filtra on for Fine dust par cles PM 2.5 = Par cle Ma er of all solid and liquid par cles suspended in air bigger than 2.5µ). However, our masks can also filter par cles as small as 0.007 microns – 10 mes smaller than viruses, and much smaller than PM2.5. Ÿ ≥ 95% protec on level against airborne Fine Aerosols, like saliva droplets carrying viruses. Ÿ 2019-nCoV par cles are generally spherical with some pleomorphism, their diameter varies from about 60 to 140 nm. Ÿ
Execution - Uitvoering 5 filtra on layers ultrasonically welded together. Latex & glass fibre free. Materials that are in direct contact with the face are Hypoallergeen harmless. The materials used have sufficient strength and can not be damaged or deformed during normal service life. Ÿ The design of the headband is adjustable for easy wearing and removal, the mask is able to be firmly fixed on the face and there will be no obvious compression or tenderness problems when wearing.The mask should be able to ensure close contact with the face, and should not deform during the service life. Ÿ Ÿ Ÿ Ÿ
Efficiency & Test Reports 1. PFE Filtra on efficiency in % on 0.1µ NaCI par cles Ÿ Technical requirement : KN95 ≥ 95.0 % Our Test value on average 99 % 2. Respiratory resistance Ÿ Technical requirement : the total inspiratory resistance should not be greater than 250 Pa Ÿ Our Test value total inspiratory resistance < 103 Pa
Nonwoven skin Wicking Layer Meltblown 1 Meltblown 2 Nonwoven