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Marc Cahoon photo
New Zealand, Wellington
1 Level
770 Review
61 Karma

Review on Nispira True HEPA Filter Replacement for Envion Therapure TPP440 TPP540 TPP640 TPP640S Air Purifier - Comparable to Part TPP440F, Pack of 2 by Marc Cahoon

Revainrating 4 out of 5

Fits great, air performance is slightly reduced.

These replacement filters fit exactly like original filters which are no longer available. The only downside is that the airflow is reduced a little more than with the original filters. I wish I could buy additional original filters when they become available. The car was only 2 years old before the filters ran out. That is not right.

Pros
  • Consistent test results
Cons
  • Could have chosen a newer model