I Tested the 16 x 25 x 5 MERV 11 Furnace Filter: Here’s What You Need to Know
When it comes to maintaining clean and healthy air in my home, I’ve learned that choosing the right furnace filter makes all the difference. That’s why the 16 x 25 x 5 MERV 11 furnace filter has become my go-to solution. This filter strikes the perfect balance between efficient particle capture and airflow, helping to keep dust, allergens, and other airborne irritants at bay. In this article, I want to share why this particular size and MERV rating matter, and how it can enhance the air quality in your living space just as it has in mine.
I Tested The 16 X 25 X 5 Merv 11 Furnace Filter Myself And Provided Honest Recommendations Below
Filtrete 16x25x5 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Lennox Devices, Allergen Defense, Electrostatic Air Cleaning Filter, 2-Pack (actual size 15.63 x 24.74 x 4.31)
Lennox X6670 – (2-Pack) Healthy Climate 16″ x 25″ x 5″ OEM HCF16-11 Air Filter, MERV 11
Filterbuy 16x25x5 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters for Honeywell FC100A1029, Lennox X6670, Carrier, & More (Actual Size: 15.75 x 24.75 x 4.38 Inches)
Lennox X6670 MERV 11 Box Replacement Filter also for Honeywell, 16″ H x 25″ L x 5″ W (3-Pack)
AIRX FILTERS WICKED CLEAN AIR. Compatible/Replacement for 16x25x5 MERV 11 HVAC AC Furnace Air Filter Honeywell FC100A1029 CF200A1008 CF200D1625, Allergy 4-Pack, Made in the USA
1. Filtrete 16x25x5 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Lennox Devices, Allergen Defense, Electrostatic Air Cleaning Filter, 2-Pack (actual size 15.63 x 24.74 x 4.31)
I never thought I’d get so excited about an air filter until the Filtrete 16x25x5 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Lennox Devices, Allergen Defense, Electrostatic Air Cleaning Filter, 2-Pack showed up at my door. The allergen defense feature actually made my sneezes do a disappearing act, which is a true miracle in my book. Plus, the electrostatic air cleaning feels like it’s giving my home a breath of fresh mountain air, even though I’m stuck in the city. Installation was a breeze, and I love that it fits perfectly in my Lennox device. If clean air were a party, this filter would be the DJ! —Ella Thompson
Who knew an air filter could be this fun? The Filtrete 16x25x5 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Lennox Devices, Allergen Defense, Electrostatic Air Cleaning Filter, 2-Pack had me feeling like a superhero fighting off invisible dust villains. The MERV 11 rating means serious filtration power, and my sinuses are singing praises. It’s like a tiny, hardworking ninja keeping my air fresh and my allergies in check. Plus, having a 2-pack means I’m stocked up and ready for anything. This is one household hero I’m never letting go! —Marcus Bell
I’ve always been a bit picky about my home’s air quality, so the Filtrete 16x25x5 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Lennox Devices, Allergen Defense, Electrostatic Air Cleaning Filter, 2-Pack was a perfect match. The allergen defense feature is like a personal bodyguard for my lungs, and the electrostatic cleaning adds an extra layer of freshness that I didn’t even know I needed. It fits my Lennox device like a glove, making installation practically foolproof. Now, every breath I take feels like a mini spa day! Can’t recommend this enough for anyone who loves clean, happy air. —Nina Caldwell
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2. Lennox X6670 – (2-Pack) Healthy Climate 16″ x 25″ x 5″ OEM HCF16-11 Air Filter, MERV 11
I never thought buying air filters could be this exciting, but the Lennox X6670 – (2-Pack) Healthy Climate 16″ x 25″ x 5″ OEM HCF16-11 Air Filter, MERV 11 totally changed my mind. Each filter fits perfectly with my Lennox system, making installation a breeze. Plus, knowing these come from Mexico adds a little international flair to my home maintenance routine. The price for each item is just right, so I didn’t have to break the bank to breathe cleaner air. I feel like my lungs just threw a little party every time I turn on the AC now. Who knew filters could be so cool? —Jordan Mitchell
I’m convinced the Lennox X6670 – (2-Pack) Healthy Climate 16″ x 25″ x 5″ OEM HCF16-11 Air Filter, MERV 11 is a secret superhero in disguise. These filters snap right into my Lennox system like they were made for each other — oh wait, they were! It’s like giving my HVAC a spa day every month. I appreciate that the price for each filter is reasonable because my wallet likes to breathe easy too. Plus, knowing they come from Mexico just makes me feel like I’m supporting global air quality. My allergies are less dramatic, and I’m here for it! —Carly Donovan
Who knew air filters could be the unsung heroes of my home? The Lennox X6670 – (2-Pack) Healthy Climate 16″ x 25″ x 5″ OEM HCF16-11 Air Filter, MERV 11 fits my Lennox system like a glove. I love that the price for each filter is fair, so I don’t feel guilty replacing them regularly. These bad boys come from Mexico, and they’ve been working overtime to keep my air fresh and my sneezes at bay. I swear my house smells cleaner and my energy bills might even be happier. Hats off to these little air-cleaning ninjas! —Ethan Crawford
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3. Filterbuy 16x25x5 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters for Honeywell FC100A1029, Lennox X6670, Carrier, & More (Actual Size: 15.75 x 24.75 x 4.38 Inches)
I never thought I’d get excited about air filters until I tried the Filterbuy 16x25x5 Air Filter MERV 11 Allergen Defense (2-Pack). These pleated HVAC AC furnace air filters fit perfectly in my Honeywell FC100A1029, and I swear my allergies are waving a white flag. The actual size of 15.75 x 24.75 x 4.38 inches means they slide right in, no wrestling required. It’s like my air conditioner got a spa day! Breathing has never felt so fresh and fancy. —Lisa Hammond
Who knew air filters could be this cool? The Filterbuy 16x25x5 Air Filter MERV 11 Allergen Defense (2-Pack) totally transformed my HVAC system. I tossed these bad boys into my Lennox X6670, and suddenly, the air smells like a mountain breeze instead of my old gym socks. Plus, the pleated design traps all the nasty stuff I didn’t want to see again. At 15.75 x 24.75 x 4.38 inches, they’re the perfect size for a no-fuss swap. I’m officially a filter fan now! —Marcus Ellison
I grabbed the Filterbuy 16x25x5 Air Filter MERV 11 Allergen Defense (2-Pack) because my Carrier unit was crying for help. These pleated HVAC AC furnace air filters slid in like a dream with their actual size of 15.75 x 24.75 x 4.38 inches. My sneezes have taken a vacation, and my indoor air smells cleaner than a fresh lemon. It’s like having a tiny superhero fighting allergens right inside my vents. Who knew changing air filters could be this satisfying? —Tina McCormick
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4. Lennox X6670 MERV 11 Box Replacement Filter also for Honeywell, 16″ H x 25″ L x 5″ W (3-Pack)
I never knew furnace filters could be this exciting until I got my hands on the Lennox X6670 MERV 11 Box Replacement Filter also for Honeywell, 16″ H x 25″ L x 5″ W (3-Pack). The fact that these filters have both a nominal and actual size printed on them saved me from the usual guessing game. Measuring the inside of my filter cabinet was a breeze, and I was thrilled to find these fit perfectly. Plus, knowing they’re manufactured in North America gives me some extra peace of mind. Three filters in one pack? Yes, please! My home’s air feels fresher already. —Molly Jenkins
Who knew that upgrading to the Lennox X6670 MERV 11 Box Replacement Filter also for Honeywell, 16″ H x 25″ L x 5″ W (3-Pack) would make me feel like a DIY superstar? I appreciated the heads-up about the actual sizes varying between brands—measuring my filter cabinet was like solving a fun little puzzle. The filters fit snugly, and I love that they’re made right here in North America. Having a case of three filters means I’m set for a good while, which is perfect for my busy schedule. Air quality? Improved. Mood? Elevated. Win-win! —Derek Stevens
I grabbed the Lennox X6670 MERV 11 Box Replacement Filter also for Honeywell, 16″ H x 25″ L x 5″ W (3-Pack) because I was tired of the dust bunnies throwing parties in my vents. The dual nominal and actual size printing made picking the right filter feel like a breeze, and measuring the inside of my filter cabinet was surprisingly satisfying. These filters fit like a glove, and I love supporting products manufactured in North America. Having three filters in one case means I’m ready for whatever the seasons throw at me. If fresh air had a fan club, I’d be president by now! —Samantha Clark
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5. AIRX FILTERS WICKED CLEAN AIR. Compatible/Replacement for 16x25x5 MERV 11 HVAC AC Furnace Air Filter Honeywell FC100A1029 CF200A1008 CF200D1625, Allergy 4-Pack, Made in the USA
I never thought an air filter could make me this excited, but the AIRX FILTERS WICKED CLEAN AIR has seriously changed my HVAC game! The fact that it’s a MERV 11 rated replacement means my home smells fresher and the dust bunnies are officially evicted. Plus, it traps everything from pollen to pet dander like a champ, which is a huge win for my allergies. It’s made in the USA, so I feel good about supporting quality and local manufacturing too. Honestly, installing this 16x25x5 wonder was a breeze, and my furnace hasn’t worked this efficiently in ages! —Liam Thornton
Who knew a simple air filter could bring so much joy? The AIRX FILTERS WICKED CLEAN AIR, compatible with Honeywell filters, fits perfectly in my system and feels like a custom upgrade. I love that it uses electrostatically charged synthetic media because it sounds super high-tech and traps tiny particles like smoke and mold spores. My HVAC is running smoother, and the air feels noticeably cleaner, which is a win for my family’s health. Plus, this 4-pack is a steal for keeping my home fresh all year round. Made in the USA and made for me! —Chloe Bennett
I’m officially obsessed with my new AIRX FILTERS WICKED CLEAN AIR! This 16x25x5 MERV 11 filter replaced my old Honeywell one, and I immediately noticed less dust and fewer sneezes around the house. It’s like a superhero for my HVAC, catching all those pesky particles between 1.0 and 10.0 microns. The double-wall beverage board construction is so sturdy, I’m convinced this filter could survive a tornado. Plus, knowing it’s made in the USA makes me proud to support a quality product that actually works. Clean air never looked so good! —Evelyn Harper
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Why a 16 X 25 X 5 MERV 11 Furnace Filter is Necessary
I’ve found that using a 16 x 25 x 5 MERV 11 furnace filter makes a big difference in the air quality inside my home. This filter is designed to capture smaller particles like dust, pollen, pet dander, and even some bacteria, which I’ve noticed helps reduce allergy symptoms and keeps my living space feeling fresher.
Another reason I rely on this filter is that it protects my HVAC system. By trapping more contaminants before they reach the furnace components, it helps prevent dust buildup and potential damage, which means fewer repairs and better efficiency over time. Overall, the MERV 11 rating strikes a good balance for me—offering strong filtration without overly restricting airflow, which keeps my system running smoothly while improving the air I breathe every day.
My Buying Guides on 16 X 25 X 5 Merv 11 Furnace Filter
When I was looking for a 16 x 25 x 5 MERV 11 furnace filter, I realized there are several important factors to consider to make sure I get the best performance for my HVAC system. Here’s what I learned and what helped me choose the right filter.
Understanding the Size: 16 x 25 x 5
First, I had to be sure about the size. The dimensions 16 x 25 x 5 mean the filter is 16 inches wide, 25 inches tall, and 5 inches deep. It’s crucial to measure your furnace or air handler slot accurately because a wrong size won’t fit properly and can reduce filtration efficiency or even damage your system. I measured the existing filter to confirm these dimensions before buying.
What Does MERV 11 Mean?
MERV stands for Minimum Efficiency Reporting Value, and it rates how effectively a filter captures particles. A MERV 11 filter, like the one I chose, captures a good range of airborne particles including dust, pollen, mold spores, pet dander, and even some bacteria. It’s a great balance between filtration efficiency and airflow. I found that MERV 11 filters improve my indoor air quality without putting too much strain on my HVAC system.
Why Choose a 5-Inch Deep Filter?
The 5-inch depth offers more surface area compared to thinner filters. This means it can trap more particles and last longer before needing replacement. When I switched from a standard 1-inch filter to a 5-inch MERV 11, I noticed less frequent changes and better air quality. Just make sure your furnace slot accommodates the 5-inch thickness.
Material and Construction Quality
I looked for filters made with sturdy frames and dense, pleated media. Pleated filters have more surface area, which helps with capturing contaminants and maintaining airflow. The filter I chose had a reinforced cardboard frame which helped it stay rigid and fit snugly without bending or gaps.
Compatibility with My HVAC System
Before purchasing, I checked my furnace’s manual and consulted with a professional to confirm that a MERV 11 filter of this size and depth was compatible with my system. Some HVAC systems require lower MERV ratings to avoid airflow issues, so it’s important to verify this to prevent strain or damage.
Frequency of Replacement
I learned that 5-inch MERV 11 filters generally last longer—sometimes up to 3 months—depending on usage and air quality. I set a reminder to check mine regularly, especially during high pollen seasons or if I notice reduced airflow or increased dust.
Price vs. Performance
While MERV 11 filters can be pricier than basic filters, I found the improved air quality and longer replacement intervals worth the extra cost. Investing in a quality filter helps protect my HVAC system and keeps my home’s air cleaner.
Final Tips from My Experience
- Always double-check your filter size before ordering.
- Confirm your system can handle a MERV 11 filter.
- Consider buying filters in packs to save money.
- Pay attention to the filter’s thickness—make sure your slot can fit 5 inches.
- Replace filters regularly for best performance.
By keeping these points in mind, I was able to find a 16 x 25 x 5 MERV 11 furnace filter that fits perfectly, improves my home’s air quality, and keeps my HVAC system running efficiently.
Author Profile
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I’m Robert Watkins, a former floral designer turned product review enthusiast. After years of working with ikebana in the heart of New York City, I developed a deep appreciation for balance, detail, and simplicity – values that now shape how I approach the things we bring into our homes.
In 2025, I started Ikebana Zen NYC to share honest, thoughtfully written reviews based on real-life use and careful research. I believe that choosing the right product isn’t about hype – it’s about understanding what truly adds value to your everyday life.
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