?Compatible Model?: Compatible with Therapure TPP440F, Fits Envion TPP440, TPP540, TPP640 Air Purifiers. | ?Usage?: Recommended to replace filters evert 6 month. To keep your motor normal operate. | ?Filter Features?: These replacement Filters can capture small particles, dust, hairs, powder etc. protect the motor. | ?Filter Details?: L17.9 x W5.2 x H2.75 inches, weight 0.49 lb. Package include 2 pack replacement filters TPP440F.
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Item# : SPM18473595404
Model # : RNAB0969FR9YJ