Purex 400i Main Filter for Lasers – Hepa Twin Chemical (PN: 113579)


Original price was: £333.15.Current price is: £320.65.

HEPA/Twin chemical filters effectively filter particles as small as 0.3 microns with a 99.997% efficiency rate. They also absorb a broad range of gases and vapours, especially those emitted during rubber engraving or acidic gas applications.

For laser applications, we always recommend the Purex Main Filter Hepa Twin Chemical variant as they offer greater protection across a wide variety of applications.

Supplied as a single slide in unit compatible with the Purex 200, 300 and 400 iFume systems. 

8 in stock (can be backordered)


This Purex 400i main filter includes a Hepa filter and twin chemical filters, is an essential component for laser systems, ensuring efficient filtration and protection against harmful contaminants.

It is also suitable for:
• PUREX 200 Fume Extraction System
• PUREX 200i Fume Extraction System

• PUREX 300 Fume Extraction System
• PUREX 300i Fume Extraction System

• PUREX 400 Fume Extraction System
• PUREX 400i Fume Extraction System


Key Features of the Main Filters:

Purex employs unique combinations of filter media in the Purex 400 Replacement main filters. These are designed to capture particles, gases, and vapours produced during processes like laser engraving, laser marking, and inkjet printing. Each filter is assigned a distinct serial number and undergoes individual testing and certification to guarantee both performance and safety.

  • Purex HEPA filter elements undergo precise manufacturing using pleated material, which includes reinforcing strips. These strips serve to separate the pleats and prevent any airflow vibration or collapse.
  • Furthermore, air equalization plates are positioned between the media layers to enhance the strength of the filter housing and evenly distribute airflow throughout the filter. This ensures optimal utilization of all filter media.
  • HEPA/Chemical filters effectively filter out particles as small as 0.3 microns with a 99.997% efficiency rate, while also absorbing a diverse range of gases and vapours.

Download the Purex 400i Main Filter Hepa Twin Chemical (Part Number: 113579) product specification brochure here! 

Download the Purex Main Filter catalogue page here!

Shipping Dimensions:

Product Height: 26cm

Product Length: 36.5cm

Product Width: 36.5cm

Filter Weight: 11kg

Additional information

Weight12.5 kg
Dimensions38 × 38 × 300 cm

We can deliver to all parts of the UK as well as the Republic of Ireland. All Purex Laser Fume Replacement Filters are built to order to ensure optimum performance. The average lead time on any Purex replacement filter is typically 1 – 2 weeks.

You may also like…