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

Revainrating 4 out of 5

Ideal for room fans.

Our old room fan is mainly for the "white noise" my wife needs to sleep. But after the turn of the month, they catch dust well. Great buy compared to manufacturer replacement parts.

Pros
  • Confident
Cons
  • Out of fashion