Dromex A1-EN Twin Filter Organic Gas NRCS/8072/0415 Only Compatible With EN302 Twin Mask

The Dromex DR-A1-EN Reusable Gas Cartridges are twin A1 organic vapour filters designed for use with Dromex twin-cartridge respirators. Built with an activated carbon filtration layer and a compact, low-profile design, they help protect wearers in environments where organic gases and vapours (boiling point higher than 65°C) may be present.

VERIFIED KEY FEATURES

• A1 protection for organic gases and vapours with boiling points higher than 65°C
• Twin-cartridge format for use on Dromex twin-cartridge respirators only
• Activated carbon filtration layer to remove harmful gases and vapours and help neutralise unpleasant odours
• Ergonomic, lightweight, low-profile design to support unobstructed vision
• Large surface area for improved loading capacity and longer usable life (conditions dependent)
• Easy threaded attachment for secure, convenient fitment
• Compatible with Dromex pre-filters DR-P2PF-EN and DR-P3PF-EN (used with gas cartridges only) to add particulate protection and help prolong gas filter life in dusty or oily environments
• No metal fittings in the device

BENEFITS (PPE/WORKWEAR LANGUAGE)

• Confidence on the job: A1 filtration helps reduce exposure to common organic vapours encountered in industrial and maintenance tasks.
• Comfortable for longer wear: The low-profile, lightweight shape helps reduce bulk and keeps your field of view clearer while working.
• Practical filter management: Twin cartridges screw on securely and can be replaced when breathing resistance increases or breakthrough is detected.
• Flexible protection options: Add compatible Dromex pre-filters when you need particulate protection alongside organic vapour filtration.
• Built for work environments: Durable cartridge construction supports day-to-day site handling and storage when used and maintained correctly.

SPECIFICATIONS AND TECHNICAL DETAILS (CONFIRMED DATA ONLY)
Brand: Dromex
Model / Item Code: DR-A1-EN
Product Type: Reusable gas cartridges (twin)
Filter Type / Class: A1 (organic gases and vapours)
For Use Against: Organic gases and vapours with boiling points higher than 65°C
Colour Code (Filter Identification): Brown (B)
Compatibility: For Dromex twin-cartridge respirators only (including DH302 and DHFFM)
Thread Direction: Right-hand thread (screw on clockwise)
Breathing Resistance:

• At 15 l/min: maximum 1 mbar
• At 47.5 l/min: maximum 4 mbar
  Gas Capacity (Test Data): Cyclohexane (C6H12) breakthrough time (BTT) > 70 minutes at 10 ml/m³
  Maximum Gas Capacity: 1000 ppm
  Materials (By Component):
• Cartridge body: ABS (Acrylonitrile Butadiene Styrene)
• Filter media layers: Polyester sheet and A1 carbon layer (with polyester sheet layers)
  Metal Components: None (no metal fittings)
  Compliance / Approvals:
• PPE Regulation (EU) 2016/425 (CE marked)
• EN 143:2021
• EN 14387:2004 + A1:2008
• SANS 54387:2007
• NRCS Type Approval No.: NRCS/8072/0415
  Packaging: One set of two (2) cartridges, shrink wrapped in a polybag
  Shelf Life (Unopened, Stored Correctly): 4 years (expiry date marked on cartridge)
  Cleaning (Exterior): Wipe with a damp cloth; do not use solvents; prevent water entering the filter
  Storage Guidance: Store in a dry, cool place away from direct sunlight and contamination; keep relative humidity below 75%

HOW TO USE (SIMPLE)

1. Check the expiry date on each cartridge and inspect for damage (dents, tears, deformation). Do not use damaged or expired cartridges.
2. Confirm you are using a Dromex twin-cartridge respirator intended for twin filters.
3. Screw each cartridge onto the respirator filter connectors clockwise (right-hand thread) until secure. Do not over-tighten.
4. If particulate protection is needed, fit the appropriate Dromex pre-filter (DR-P2PF-EN or DR-P3PF-EN) using the correct retainer system for pre-filters used with gas cartridges only.
5. Leave the work area immediately and replace cartridges if breathing becomes difficult, you smell/taste contaminants, or you experience dizziness or discomfort.

THREE CUSTOMER REVIEWS

1. Noluthando M.
   “Easy to fit onto our twin masks and they sit close to the face without getting in the way. We use them for solvent vapours in the workshop and the comfort is noticeably better than bulkier options.”
2. Gareth P.
   “Solid cartridges and the thread-on fit feels secure. We run pre-filters when the area is dusty, and that setup has worked well for our maintenance team.”
3. Ayesha K.
   “Good low-profile design—my vision isn’t blocked while working. Change-out is straightforward, and storage is simple as long as you keep them sealed and clean.”

FAQS

1. Do these cartridges come in sizes?
   No. The DR-A1-EN is a cartridge filter, not a sized garment. Fit depends on using the correct compatible twin-cartridge respirator.
2. Which respirators are these compatible with?
   They are for Dromex twin-cartridge respirators only, including DH302 and DHFFM. Do not use twin cartridges on single-port masks.
3. What do A1 cartridges protect against?
   A1 cartridges are designed to filter organic gases and vapours with boiling points higher than 65°C.
4. Can I add particulate protection for dusty work?
   Yes. These cartridges can be used with Dromex pre-filters DR-P2PF-EN or DR-P3PF-EN (used with gas cartridges only) to add particulate protection and help prolong the gas filter in certain conditions.
5. When should I replace the cartridges?
   Replace them if breathing resistance increases, if you detect breakthrough (smell/taste/irritation), if the respirator or cartridge becomes damaged, or once the established change-out schedule for your site is reached.
6. How do I clean and store them?
   Wipe the exterior with a damp cloth only. Do not use solvents and do not allow water to enter the filter. Store in a dry, cool area away from direct sunlight and contamination, and keep within the marked shelf life.

INDUSTRIES / WORKPLACE APPLICATIONS (UP TO 10)

• Oil and Gas
• Chemical Processing
• Pharmaceuticals Manufacturing
• Painting and Spray Finishing
• Welding and Metal Fabrication
• General Manufacturing and Industry
• Water Treatment Facilities
• Agriculture and Pesticide Application
• Laboratories
• Automotive and Aviation Manufacturing

RELIABLE A1 ORGANIC VAPOUR PROTECTION YOU CAN WORK IN
When you need dependable A1 filtration in a compact twin-cartridge format, the Dromex DR-A1-EN delivers practical protection for organic vapour hazards while supporting comfort, visibility, and straightforward change-outs. Pair it with the correct Dromex twin respirator and compatible pre-filters where required to build a setup that matches your task and site conditions.

SIZE CHART
Not applicable (cartridge filter – no sizing).