DP Filter

Used against particles, dust, smoke, fume, bacteria, viruses, biological warfare agents, and a wide range of organic, inorganic and acid gases and ammonia.

Examples: Sarin, nerve gas, mustard gas, cyanogen, phosgene, radioactive dust, toxic particles, aerosols, tear gas, bacteria, viruses, anthrax, smallpox etc. — Also provides protection against industrial gases such as ammonia, hydrogen cyanide, acid gases, chlorine, sulfur dioxide, hydrogen chloride and many more.

Large filter: 370g (12.95 oz)
Small filter: 320g (11.2 oz)

NATO/EN 148-1.40mm

Particle filter contains about 160 sq inches (1,096 sq cm) non-woven hydrophobic fibreglass paper

Industrial compounds:
Compound	Conc. (ppm)	Flow rate (l/min)	Filter capacity (min)
Cyclohexane C6H12	5000	30	50
Chlorine C12	5000	30	40
Hydrogen sulfide H2S	5000	30	>120
Sulfur dioxide SO2	5000	30	23
Ammonia NH3	5000	30	50
Carbon tetrachloride CCl4	1000	64	>65
Methylomine CH3NH2	1000	64	>80
Hydrogen chloride HCl	500	64	>35
ClO2	500	64	>60
Hydrogen fluoride HF	70	64	>60
Formaldehyde	100	64	>100
O-chlorobenzylidene malonotrile CS	3	64	>480
CN teargas	16	64	>480
DOP	200mg	85	40mm H20 (penetr.0.004%)
NaCl		95	0.001%

 

 

Warfare compounds*:
Compound	Conc. (ppm)	Flow rate (l/min)	Filter capacity (min)
Sarin GB (Tested by SBCCOM) Nerve agent Lethal dose: 35 mg/m3 Effectice dose: 25 mg/m3	300 mg/m3	25	>60
Hydrogen cyanide HCN Blood agent Lethal dose: varies widely with concentration	5000	30	72
Cyanogen chloride CK (Tested by SBCCOM) Blood agent Lethal dose: 11,000 mg/m3 Effective dose: 7,000 mg/m3	4000 mg/m3	50	>45
O-chlorobenzylidene malonotrile CS Tear gas Lethal dose: 61,000 mg/m3 Effective dose: 10-20 mg/m3	3	64	>480
Chloroacetophenone CN Tear gas: Lethal dose: 7,000-14,000 mg/m3 Effective dose: 80 mg/m3	16	64	>480

NOTE: Blue area signifies European test data using large filters. Remaining tests conducted in USA on small filters.

*) Warfare gas test results are not derived from, nor have any relation to NIOSH testing