Replacement HEPA Filters Compatible with Envion Therapure TPP440F, TPP440 TPP540 TPP640 TPP640S Air Purifiers,4-Stage Filtration High-efficiency Activated carbon,2-Pack

Material True HEPA

Product Dimensions 17"L x 6"W x 6"Th

Compatible Devices TPP440-Replacement

Item Weight 1.4 Pounds

Fully Compatible with Envion Therapure TPP440F , TPP440 TPP540 TPP640 TPP640S Air Purifiers

note: please remove the new filter from the plastic bag before placing it into it.

After Replacing the filter , please hold down Timer + Power On button for 3 seconds. The clean filter light will go off.