N95 Particulate Respirator Face Mask

Item classification

N series: No time limit for protection of non-oily suspended particles

R series: protection of non-oily suspended particles and sweaty suspended particles for eight hours

P series: protection against non-oily suspended particles and sweaty suspended particles without time limit

 

Some of the carrier particles is oily, and these substances attached to the electrostatic reduces electrically non-woven fabric, so that penetration of fine dust, so for the anti-oil aerosol filter material to go through a special treatment in order to achieve the anti-small Purpose of dust. So each series is divided into 3 levels: 95% , 99% , 99.97% ( ie 95 , 99 , 100 for short ) , so there are 9 categories of filter media.

Second, the European Union EN149 standard:

FFP1 Type Masks : Minimum filter effects, ” 80%

FFP2 masks : Minimum filter effects, ” 94%

FFP3 Type Masks : Minimum filter effects, ” 97%

Third, the Australian AS1716 standard

P1 : Minimum filter effects, ” 80%

P2 : Minimum filter effects, ” 94%

Fourth, Japan MOL verification standards:

According to Japan’s 2005 Nian 2 Yue 7 , issued 0,207,006 Decree, dust masks standard in the following table

Test environmental conditions

Experimental particle

DOP (liquid)

NaCl (solid)

Particle size distribution μm

0.15-0.25

0.06-0.1

Experimental concentration [mg / m3]

≤100

≤50

Experimental flow [L / min]

85

85

Test time

Total supply 200mg

Total supply 100mg

 

Replaceable dust mask standard

distinguish

Filtration efficiency [above%]

Inspiratory pressure [Pa or less]

Exhaust pressure [Pa or less]

DOP

NaCl

RL3

RS3

99.9

160

80

RL2

RS2

95.0

80

70

RL1

RS1

80

70

70

 

Disposable Masks Standard

distinguish

Filtration efficiency [above%]

Inspiratory pressure [Pa or less]

Exhaust pressure [Pa or less]

DOP

NaCl

Gas valve

Airless valve

Gas valve

Airless valve

DL3

DS3

99.9

150

100

80

100

DL2

DS2

95

70

50

70

50

DL1

DS1

80

60

45

60

45

 


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