Purex 202271 F8/9 Composite Labyrinth Pre-Filter - Pack of 2

These Purex Pre-filters are designed to capture larger particles before they can enter the main HEPA filter.

The main filter life would be much shorter without pre-filters, therefore these would be an asset to anyone using these units.

Suitable for:

• 200i / 200i HP
• 400i / 400i Ozone / 400i PVC
• iFume Green / iFume Ozone / iFume PVC / iFume Violet
• Weldex

Key Features:

• Patented Labyrinth pre-filters
• Extends the life of the main filter by capturing larger particles before they reach the HEPA filter
• Fits neatly under the main filter in integral extractors
• Graduated fiber matrix delivers excellent particle capture - up to 20 times more than a standard filter
• Ideal for medium-high volume applications 
• Contains the particles inside for clean and simple disposal
• Composite material available for extra filter life and filteration down to 0.5 micron
• Standard captures particles to 3 micron at efficiency of 60% to 80%
• Composite captures particles to 1 micron at efficiency of 80 - 95%