Combination Filter Bayonet A1B1E1K1HgP3 R D | Draeger

• This is a combination gas + particle (aerosol) filter (i.e. it protects against both gases/vapors and particulates).

• It uses a bayonet connection (side-mount) compatible with Dräger masks with bayonet fittings (for example, X‑plore 3300, 3500 half‑masks, X‑plore 5500 full‑face masks)

• The “R” marking indicates it is reusable across multiple work shifts (i.e. not strictly single use) under appropriate conditions.

• It is sold in packs (pairs or multiples) and individually vacuum sealed for shelf life preservation.

Markings & What They Mean (A1B1E1K1HgP3 R D)

Here’s a breakdown of each component:

The “D” (dolomite test) is significant: it means it remains usable / breathable even when exposed to fine dust load (i.e. it resists clogging more so than filters without that mark).

Technical Specifications / Performance Data

Here are more specific technical details:

• Standards / Certification: EN 14387 (for gas/combo filters) and EN 143 (for particle filters)

• Weight: approx. 140 g per piece (as stated in one datasheet)

• Filter Housing & Design:

  • Robust plastic housing with splash protection and hydrophobic paper to prevent moisture ingress

  • Low airflow resistance due to pleated filter media and wide internal cavity design

  • Filters are vacuum sealed to maintain shelf life; shelf life for gas/combo filters is generally 6 years (if stored unopened, under correct conditions)

• Usage / Replacement Guidance:

  • The filter must be replaced when you detect breakthrough (i.e. smell, taste) of gases, or if breathing resistance becomes too high due to particulate loading

  • The filter cannot be disassembled: the gas & particle portions are integrated and cannot be replaced separately. If one part is used up (e.g. particle filter clogged), the entire unit must be replaced.

  • Storage after use: must be placed back in airtight, dry, cool conditions if reusing for another shift (if allowed by the “R” rating)

• Compatibility: Meant for Dräger masks with bayonet connection: X‑plore 3300, 3500, 5500, etc.

• Part / Catalog Number: 6738817 is a commonly referenced catalog / part number for this filter.