Comments about Allerair 5000 Series Pro-dense Replacement Pre-filter:
The replacement pre-filters for the Allerair 5000 Exec were very easy to replace; good directions to replace the filters came with it but were hardly needed. The Allerair 5000 Exec model air purifier is a great machine and has greatly improved the air quality in our home. It removes odors, dust, particles, etc. and pumps in a constant source of fresh air. Sylvane is a great company to do business with; the order was processed very quickly, I was notifed by e-mail when the order was processed and another when it was shipped, and the products were delived promptly. I will certainly buy from Sylvane again.