Purex 202273 - Pre-Filter, Labyrinth F8/F9, 800i 3-Tier (2 Pack)

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:

• Purex System800i Fume Extraction - 3 Tier Digital

Key Features:

• 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 Purex extractors 
• Graduated fiber matrix delivers excellent particle capture capacity - up to 20 times more than a standard filter
• Ideal for medium-high volume applications
• Contains the particiles inside for clean and simple disposal
• Composite material available for extra filter life and filtration down to 0.5 micron
• Standard captures particles to 3 micron at efficiency to 60 to 80 %
• Composite captures particles to 1 micron at efficiency of 80-95%