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Model numbers with A, C, H, S denote cartridges with Japanese standard approval.
 
Target Gas
Halogen Gas
Acid Gas
Organic Vapors
Ammonia
Sulfur Dioxide
Hydrogen Sulfide
Ethylene Oxide
Formaldehyde
Features
Alphabets and Color Coding
B
C
H
S
K
 
Test Gas
Chlorine
Hydrogen Chloride
Cyclohexane
Ammonia
Sulfur Dioxide
Hydrogen Sulfide
Ethylene Oxide
Formaldehyde
Maximum Permissible Penetration Level (Concentration) *1
1ppm
5ppm
5ppm
50ppm
5ppm
10ppm
1ppm
0.08ppm 0.25ppm
Cartridge
Types
Concentration of Test Gas
Respirators for Use
0.02%
(200ppm)
0.03%
(300ppm)
0.03%
(300ppm)
0.1%
(1000ppm)
0.03%
(300ppm)
0.02%
(200ppm)
0.003%
(30ppm)
0.02%
(20ppm)
 
KGC-1M
R-5, RR-7
     KGC-1M(C) for organic vapors Over 200 min.           Light-weight, low airflow resistance
KGC-1L series
R-5, RR-7
 KGC-1L(A) for halogen gas Over 250 min. w/pre-filter (over 80.0% filtering efficiency) KGC-1L(B) for acid gas Over 430 min. w/pre-filter (over 80.0% filtering efficiency) KGC-1L(C) for organic vapors Over 260 min. w/pre-filter (over 80.0% filtering efficiency) KGC-1L(H) for ammonia Over 140 min. w/pre-filter (over 80.0% filtering efficiency) KGC-1L(S) for sulfur dioxide Over 70 min. w/pre-filter (over 80.0% filtering efficiency) KGC-1L(K) for hydrogen sulfide Over 300 min. w/pre-filter (over 80.0% filtering efficiency)     Long service life, particulate filtering category S1 with the use of pre-filter
KGC-1S series
R-5, RR-7
     KGC-1S(C) for organic vapors Over 85 min. w/pre-filter (over 80.0% filtering efficiency)           Light-weight, low profile, particulate filtering category S1 with the use of pre-filter
KGC-5MC
R-5, RR-7
     KGC-5MC Over 85 min./Over 80.0% filtering efficiency)           Low profile, built-in pre-filter (category S1)
KGC-10 series
G-7, GW-7
 KGC-10(A) for halogen gas Over 100 min. w/pre-filter (over 80.0% filtering efficiency) KGC-10(B) for acid gas Over 120 min. w/pre-filter (over 80.0% filtering efficiency) KGC-10(C) for organic vapors Over 90 min. w/pre-filter (over 80.0% filtering efficiency)       KGC-10EOG Over 30 min. KGC-10FA Over 90 min. Over 250 min. Compact, light-weight, threaded type, particulate filtering category S1 with the use of prefilter
KGC-10L
G-7, GW-7
     KGC-10L(C) for organic vapors Over 200 min. w/pre-filter (over 80.0% filtering efficiency)           Compact, light-weight, threaded type, particulate filtering category S1 with the use of prefilter
KGC-10MC
G-7, GW-7
     KGC-10MC Over 80 min./Over 80.0% filtering efficiency           Compact, light-weight, built-in prefilter (category S1), threaded type
*1 Maximum Permissible Penetration Level (Concentration) :
Maximum value in which the concentration level of test gas measured on the inhalation side of the cartridge does not exceed the breakthrough level, when air mixed with the test gas passes through the cartridge.
*2 Service lives disclosed on the table are Koken’s internal criterion.
 
Target Gas
Halogen Gas
Acid Gas
Organic Vapors
Ammonia
Sulfur Dioxide
Hydrogen Cyanide
Hydrogen Sulfide
Alphabets and Color Coding
B
C
H
S
J
K
Test Gas
Chlorine
Hydrogen Chloride
Cyclohexane
Ammonia
Sulfur Dioxide
Hydrogen Cyanide
Hydrogen Sulfide
Maximum Permissible Penetration Level (Concentration) *1
1ppm
5ppm
5ppm
50ppm
5ppm
10ppm
10ppm
KGC-70
  Concentration of Test Gas
HV-22
Selection of Cartridges, Service Life on Target Gas and Filtering Efficiency on Particulates *2
0.3%
(3000ppm)
0.3%
(3000ppm)
0.3%
(3000ppm)
1.0%
(10000ppm)
0.3%
(3000ppm)
0.3%
(3000ppm)
0.3%
(3000ppm)
KGC-70(A) for halogen gas Over 20 min. w/pre-filter (over 80.0% filtering efficiency) KGC-70(B) for acid gas Over 80 min. w/pre-filter (over 80.0% filtering efficiency) KGC-70(C) for organic vapors Over 56 min. w/pre-filter (over 80.0% filtering efficiency)  KGC-70(H) for ammonia Over 20 min. w/pre-filter (over 80.0% filtering efficiency)  KGC-70(S) for sulfur dioxide Over 20 min. w/pre-filter (over 80.0% filtering efficiency)  KGC-70(J) for hydrogen cyanide Over 40 min. w/pre-filter (over 80.0% filtering efficiency)  KGC-70(K) for hydrogen sulfide Over 70 min. w/pre-filter (over 80.0% filtering efficiency)
*1 Maximum Permissible Penetration Level (Concentration) :
Maximum value in which the concentration level of test gas measured on the inhalation side of the cartridge does not exceed the breakthrough level, when air mixed with the test gas passes through the cartridge.
*2 Service lives disclosed on the table are Koken’s internal criterion.
 
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