LifeSupplyUSA HEPA Filter Replacement for Envion AllergyPro AP350 Air Purifier Allergy Pro AP 350 will not work with Whirlpool AP350.

This filter fit like a glove. After searching far and wide for a replacement filter for a discontinued air purifier model, I was hesitant to purchase one that had different Replacement Model Number that was suggested on the old filter. But the dimensions were exact, so I took the plunge. It fits perfectly, and it could be my imagination, but it the air purifier sounds quieter at the same speed as before. I feel I should have bought two, since this model dimension will be scarcer in the future. You choose.

We have two different home air cleaners that use the same size filters. We recently ordered replacement filters from this vendor. The delivery was quick and the filters are doing well keeping our rooms clear of dust, pollen, odors, and other allergens.

It took 5 days for me to get the package (1 week earlier than the estimated delivery time). Easy to install and it fits perfectly.But the smell is just very bad. It is like vinegar + chemical mixed smell. I sprayed some perfume onto the filter and the smell got little bit better but still bad. I think the odor will go away in 3 days. Fingers crossed!FYI, the side that has straps should be the front.

This is a quality replacement for the original.

Fit exact. Works perfectly.