Customer Reviews for Filterbuy - 20x24x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Blue
Customer Rating
3
It makes a distinct whistling
on January 16, 2021
Posted by: Andrea P.
It makes a distinct whistling noise when the system is running compared to the Filtrete filter it replaced. Only had it a few days. Bummed about the whistling noise.
I purchased these filters for my Mother (lives in FLA), so I'm not using them myself. I CAN SAY that the delivery was very quick. Mother did mention that they were 1" smaller than the one being replaced ... I doubt that will affect the efficiency.
This was actually a 20 25 1. I am very pleased, in the morning I always wake up with a semi stopped up nose. The first morning like clock work, use the restroom, blow my stuffed up nose. I couldn't believe it, my nose wasn't stopped up. My dog has breathing problems, when the air cuts on at times she has problems breathing, no more it has been such a relief. I didn't realize how drastic an improvement it would be, thank you.