The IQAir® Cleanroom H13 Air Purifier Pre-Filter Element is designed to increase the efficiency and long-life of the HyperHEPA Filter by reducing large particulate accumulation. IQAir® systems typically retain over 90% of particle mass in the pre-filter. As a result, IQAir's HyperHEPA is better protected from premature loading.

• Lasts up to 18 months depending upon conditions and use
• Particulate retention of 90%
• ASHRAE 85% high accumulation media rate
• 55% efficiency at .3 microns
• Prolongs fan motor life<

The IQAir® Cleanroom H13 Pre-Max HEPA Pre-Filter is rated a Class F9 with an ASHRAE 85% High Accumulation Media rate. This Pre-Filter controls coarse and fine dust helping to prolong the life of the fan motor and HyperHEPA filter. IQAir® recommends the HEPA Pre Filter be replaced every six to eighteen months depending upon use and conditions.