Filtrete MPR 1900 24 x 24 x 1 Healthy Living Ultimate Allergen Reduction AC Furnace Air Filter, Guaranteed Airflow up to 90 days, 6-Pack

My wife loves these filters.

Works as advertised

I have the same reservation as other viewers. Seems like a good filter (just tried so will update after some time), BUT there is NO marking indicating the actual MPR of these filters. Also, a web search using the code on the filter reveals that it should in fact be a Ultimate Allergen filter, but unclear if its the 1500 MPR, the 1700 MPR or the 1900 MPR? Would not order again from Amazon because of this.

Happy with my purchase

Too thick for most ac systems...

Seems to work fine.

always use

They keep my return system and cool air dust and allergen free. The only filters I buy.

Utterly painless to use, and my allergies are better controlled, possibly also household dust.

Seem to work fine. I believe there is a good flow of air through the ventilating system, and I think theres less dust settling on things in the house since I started using these. I have a high throughput air handler, and it seems that in just a couple of weeks these filters go from white to grey. I suppose thats a sign that theyre doing what air filters are designed to do.