Fellowes 9600501 AeraMax Professional AM3 and 4 Pre Filter Pack of 4

Pre-filters capture large particulates like dust and hair and keep carbon filters working effectively.

Estimated life depends on level of particulates but should be changed with carbon filter.

Prefilters can be changed more frequently in high particulate environments.

Compatible with all variants of AeraMax® Pro AM 3 and AM4 Air Purifiers.

4 pack – includes 4 single pre-filters