Product Description
NBC filter - A2B2E2K2P3, thread RD40x1/7" (NATO)
Physical characteristics
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Weight: 385 g
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Filter housing material: ABS
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Filtration media: Glass microfiber and activated carbon
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Shelf life: 10 years (packaged)
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Environmental conditionsPhysical characteristics
Storage:
Operation:
- Temperature: 0 °C to +60 °C
- Humidity: 20% to 95% Rh

Pollutant Protection Groups
A – Organic gases and vapours
Protects against organic gases and vapours with a boiling point above 65 °C.
Examples: toluene, benzene, styrene, kerosene, gasoline, isobutanol.
B – Inorganic gases and vapours
Protects against inorganic gases and vapours.
Examples: fluorine, chlorine, hydrogen, hydrogen sulfide, hydrogen cyanide, hydrogen chloride, hydrogen peroxide.
E – Acidic gases and vapours
Protects against acidic gases and vapours.
Examples: sulfuric acid, hydrochloric acid, formic acid, hydrogen fluoride.
K – Ammonia and organic amines
Protects against ammonia and related compounds, such as organic amines.
Examples: methylamine, ethylamine, dimethylamine.
P – Solid particles and aerosols
Protects against suspended solid particles in the form of liquid and solid aerosols.
Examples: dust, smoke, fibers, bacteria, viruses, and radioactive particles.

Main Requirements of Standards EN 14387, EN 12941, and EN 12942
Breathing resistance with clean filters (mandatory):
- At 30 litres per minute: maximum 260 Pa
- At 95 litres per minute: maximum 980 Pa
Gas filter capacity with test gas at 30 L/min (mandatory):
- Cyclohexane (C₆H₁₂): minimum 35 minutes
- Chlorine (Cl₂): minimum 20 minutes
- Hydrogen sulfide (H₂S): minimum 40 minutes
- Hydrogen cyanide (HCN): minimum 25 minutes
- Sulphur dioxide (SO₂): minimum 20 minutes
- Ammonia (NH₃): minimum 40 minutes
- Mercury (Hg): minimum 100 hours
Gas filter capacity with test gas at 80 L/min (mandatory):
- Cyclohexane (C₆H₁₂): minimum 70 minutes
- Chlorine (Cl): minimum 20 minutes
- Hydrogen sulfide (H₂S): minimum 40 minutes
- Hydrogen cyanide (HCN): minimum 25 minutes
- Sulphur dioxide (SO₂): minimum 20 minutes
- Ammonia (NH₃): minimum 50 minutes
- Mercury (Hg): minimum 100 hours
Aerosol filter capacity at 95 L/min (mandatory):
- Sodium chloride (NaCl): maximum 0.05%
- Paraffin oil: maximum 0.05%
Total estimated delivery time
After confirming your order on Portugal Bunkers & Shelters, you will receive a confirmation email with all product information, prices and taxes.
After we submit your request, you will receive an email again confirming that your order has been sent.
The total time required to receive an order is as follows:

Total shipping time is calculated from the time your order is placed to the time it is shipped. Total delivery time is divided into processing time and shipping time.
Processing Time: The time required to analyse your order and prepare the products for shipment from our warehouse. This includes, in some cases, the production or customisation of products.
Packaging time: The time required to package the products. This includes the quality control checks when products were customised.
Delivery Time: The time it takes for the product to ship from our warehouse to your shipping address.
Delivery time may be conditioned by the address you enter in your purchase.
If you require further information, please contact our customer service.
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