Dromex A2 Twin Unifit Filter


In stock items:
Sameday Shipping - Delivery 3-5 business days
Any Backordered items:
Ships within 2 weeks, add 3 - 5 business days for delivery


  • Valve replaced with every filter
  • Individually sealed
  • Right hand thread for twin
  • CE EN 14387:2004 +A1:2008 A2
  • NRCS AZ2011/47
  • Organic

In stock (can be backordered)

SKU: DHCT-A2 Categories: ,

Additional information

Weight 0.45 kg
Dimensions 17 × 10 × 4 cm
Special Instructions

All respiratory equipment should be read in conjunction with BS EN 529:2005 “Respiratory Protective devises – Recommendations for selection, use, care and maintenance”. Do not use these cartridges or enter in area where: • The Oxygen concentration is not known or is less than 19.5%. • Contaminants or their concentrations are unknown or are known to be immediately dangerous to life or health. Particulate or gas concentrations exceed levels fixed by the applicable health and safety regulations. • The requirement for leak tightness is unlikely to be achieved if worn against a beard or facial stubble. • Not to be used for firefighting. • Do not use in explosive atmospheres These cartridges do not supply oxygen. DO NOT use in oxygen deficient atmospheres (e.g. tanks or other poorly ventilated areas). The lifetime of a filter depends on many factors including the work rate, the air flow and the concentration of the contaminant in the atmosphere. A gas filter should be changed immediately when chemical break through of a contaminant is detected by smell, taste or any other means. A dust filter should be changed when breathing becomes impaired. The UNIFIT TWIN FILTER CARTRIDGE is for use with TWIN filter masks only. DO NOT USE TWIN CARTRIDGES WITH DROMEX SINGLE MASKS. Use genuine DROMEX UNIFIT gas cartridges and particulate pre-filters. None of the materials or processes used in the manufacture of these products are known to be harmful to the wearer. The manufacturer has examined under the system for ensuring quality of production by means of monitoring and inspection. These gas filters are designed to accommodate the basic safety requirements and standards for Personal Protective Equipment. The information contained herein is intended to assist the wearer in the selection of personal protective equipment. Actual conditions of use cannot be directly simulated in a test environment therefore it is the responsibility of the end user and not the manufacturer or supplier to determine the pre-filter suitability for the intended use. All filters should be thoroughly inspected before use to ensure no damage is present. Immediately discard once open inadvertently and if damaged (eg dents).

Changing Filter Cartridge

Remove pre-filter cover during use and unscrew filter cartridge. Please note that the DROAIR TWIN filter cartridge has a right-hand thread Remove from the mask together with connector and dispose of the used components hygienically and safely. Clean the half mask as per the instructions mentioned in section, cleaning and maintenance. Remove new UNIFIT filters, complete with valve from the wrapping and replace the filters onto the mask.

Compliance & Conformity

NRCS Homologated as per SANS 10338:2009 as required by the Occupational Health and Safety Act, 1993 (Act No. 85 of 1993), and the Mine Health and Safety Act, 1996 (Act No. 29 of 1996). SANS 54387:2007, Respiratory protective devices – Gas filters and combined filters – Requirements, testing, marking, NRCS Type Approval No: AZ 2011/47. Approved for used with half masks as per EN140:1998, full face masks as per EN 136:1998. CE EN approval as per BSI CE No. 0086


Style: Twin cartridge, re-useable A2 gas filter Breathing Resistance: @15 l/min >1.0 mbar @47.5l/min >4.0 mbar Gas Capacity: Break through time in minutes (BTT) min Cyclohexane (C6,H12) BTT >70min @ 10ml/m3 Maximum Filter Capacity: Medium 5000 ppm Additional: There are no metal fittings in this device


1. Black Polystyrene filter case 2. Polyethylene terephthalate pre filter pad 3. Activated carbon 4. Polystyrene net support 5. Black Polystyrene filter lid (back plate) 6. Black Polystyrene valve seat 7. Rubber valve piece

Cleaning & Maintenance

The exterior of the filter can be cleaned with the use of a dry cloth. Solvents must not be used and care should be taken to ensure no water enters the filter.

Shelf life

3 years. The expiry date of each item is indicated on the cartridge.


All industrial waste should be disposed of correctly according to local regulations and good disposal practice. Respiratory protective devices should be disposed of considering the hazardous substance they were used for. Please consider recycling.


There are no reviews yet.

Be the first to review “Dromex A2 Twin Unifit Filter”

Your email address will not be published. Required fields are marked *

Shopping cart0
There are no products in the cart!
Continue shopping