---
title: "A2P3 Combination Filter DIN 40 EN 148-1 – Plastic – 400-serie"
url: "https://www.rsgsafety.com/product/a2p3-combination-filter-plastic/"
type: "product"
published: "2023-05-26T15:01:34+00:00"
modified: "2026-04-20T14:03:05+00:00"
author: "Bart"
---

**The RSG 400 Series Particle Filters have been designed to provide exceptional low breathing resistance, the highest comfort and long duration of use.**

The standard DIN 40mm (EN148-1) thread makes it suitable for use on the T-Air PAPR systems and the entire Full Face Mask range.

The RSG A2P3 Filter canister (Plastic) has a standard EN148-1 thread connection and protects against organic gases and vapours with a boiling point > 65oC and all kinds of solid and liquid particles.

 

**Colour codes**
 ◉ Brown: A Organic gases and vapours with boiling point > 65 ° C
 ◉ Brown: AX Organic gases and vapours with boiling point ≤ 65 ° C
 ◉ Grey: B Inorganic gases and vapours (e.g. chlorine, hydrogen sulfide, hydrogen cyanide)
 ◉ Yellow: E Acid gases and vapours (e.g. sulfur dioxide, hydrogen chloride)
 ◉ Green: K Ammonia and derivatives
 ◉ Red: Hg Mercury vapour
 ◉ White: P Particles, mists, fumes