Hours: M – F: 7:00AM – 5PM  |  24/7 Emergency Service
Service: (603) 507-6447

Not All Air Filters are Created Equal

A customer in Milford, NH recently called with a question about his home’s air filter. Trying to be a responsible homeowner, he was changing his filter every three months. However each time he went to check it the air filter was still clean, looking as good as new. After about a year of this he knew that there must be something else going on.

How Your Home’s Air Filter Works

To heat or cool a home your system will pull air from a room over coils that will heat or cool the air, then releasing it back into the home through the vents. Dirt and dust that gets sucked in through the air is trapped by the air filter, preventing the dirt from reaching the coils. Clogged, dirty coils cannot efficiently heat or cool the air as it passes over them, making an air filter’s job particularly important. But not all air filters are created equal.

Knowing Your Air Filter’s MERV Rating

The MERV (Minimum Efficiency Reporting Value) rating is a measure of the percentage of particles, based on their size, which the filter will remove from the air that passes through. Inexpensive 1” thick disposable air filters have a low MERV rating, generally between 1 and 4. The particle catching efficiency is lower on these air filters, allowing much of the smaller dust and debris to travel through. Pleated air filters made of fiberglass or natural fiber strands can capture more particles than a flat surface, with a MERV rating of 8 or higher.

With our suggestion, this Milford homeowner made the switch to a pleated air filter. With regular changes every three months he can now see that the new air filter is doing its job, capturing the dirt and dust before it can pass through to the unit’s coils.

The post Not All Air Filters are Created Equal appeared first on Joyce Cooling & Heating - Nashua, NH.


Testimonials & Reviews

We had central air conditioning installed last year by Joyce and were very satisfied with the job. Today, John N. serviced the unit and all of the components and he was incredibly thorough and professional. He explained exactly what was serviced and what to avoid (greenery around the outdoor unit). I highly recommend Joyce Cooling & Heating!

Cristina A.

Cristina A.

Jarod was my technician on March 20th. He was professional and courteous as he completed a servicing on my Heathing Unit. He explained what he was cleaning out and system runs great again.

Matt O.

Matt O.

Mitchell P. came to our house today for an issue with our AC. He was great explaining what the problem is and how they were going to take care of it going forward. He was very pleasant and nice to work with, just like everyone at Joyce Cooling and Heating that has been here.

Cindy A.

Cindy A.

Jim and team did a top notch job on our install. The team was professional, courteous and kept the work areas super clean. I was really impressed with the level of professionalism and the knowledge of the system that was installed. They answered all the questions we had! I also really appreciate how flexible they were with our 3 dogs, they did a great job ensuring materials /parts during install kept tidy to ensure the dogs didn't get into anything. Thanks for the great work!

Jill C.

Jill C.

The representative was friendly, professional, and transparent about the work being done. The issue was resolved. My expectations were satisfied.

Stephen T.

Stephen T.

Complete Residential & Light Commercial HVAC Services