Filterbuy Afb1825x22x4m13apk1

25" H x 18" W x 1" D

Air-Care electrostatic air filters are 10 times more efficient than the standard disposable filter. By switching to a permanent electrostatic furnace filter, the air inside your home will be cleaner and fresher. Our furnace filters are electrostatically charged to trap up to 88% of the dust and allergens in your home. Just easily wash the filter every 1-3 months and put it back in place. The sturdy metal frame will stand the test of time. With a lifetime warranty, why not make the switch to a permanent air filter? Electrostatic Air Filters clean the air by using static electricity, a safe, naturally occurring phenomenon. An electrostatic charge is generated by air flowing through a maze of static-prone fibers. Airborne particles are attracted and held by the static charge until released by washing. All Air-Care Electrostatic Air Filters contain an EPA-registered anti-microbial material to inhibit mold and bacteria growth on the air filter surface. electrostatic air filters the air you breathe and contains many irritants such as pollen, dust, bacteria, mold spores, pet dander, and smoke. Most of these particles are smaller than one micron. Our Electrostatic Air Filters are an effective and efficient way to reduce the number of these particles in your air. This illustration shows the typical dust-loading pattern of the electrostatic fibers. This unique characteristic improves air flow while providing maximum filtration.

My first purchase!!! I’m impressed with the service given me!!! Looking forward to future purchases with “ Way Fair “. Jerome. Tamarac, FL. Mon Jun 08 2026

Keep your LG tower-style air purifier in perfect working order with LG replacement filters. The AAFTWT130 replacement filter pack includes one PuriCare micro-particle filter and one deodorizing activated carbon filter (filter cases are not included). LG's filtration system works together to clean the air, capturing dust and other airborne particles.

Ordered my replacement filter for my LG air purifier and now it works like new! Great seller with Wayfair! High quality product at a great price!. Anonymous. Sun Mar 30 2025

Enjoy cleaner indoor air throughout larger living spaces with the LG PuriCare 360 Smart Air Purifier, designed with advanced multi-filter filtration and all-around air delivery for powerful everyday performance. The filtration system captures fine dust and allergens such as pollen and pet dander to help deliver cleaner air where and when you need it most. A unique 360-degree airflow design promotes cleaner air circulation in every direction, including areas closer to the floor, helping support more complete room coverage throughout spaces up to two thousand fifty-nine square feet. The compact, lightweight design also makes the purifier easier to move while taking up less space in your home. Built for convenient day-to-day use, the PM 1.0 sensor detects particles as small as one micron to help monitor indoor air conditions in real time. The intelligent LED indicator system changes color as indoor air quality improves, providing quick visual updates at a glance. Built-in notifications alert you when it is time for filter replacement to help maintain ongoing performance. Designed for quieter operation, the LG PuriCare 360 can run at whisper-quiet sound levels as low as twenty-three decibels for more comfortable daytime and nighttime use.

24" H x 12" W x 1" D

Filter is a quality sturdy product. However, I wish my AC was labeled properly with correct filter size needed. Ordered size as the AC was labeled but filters were a little bigger than necessary.. Marlo. Hillsborough, CA. Wed Sep 17 2014

25" H x 16" W x 1" D

These are my favorite filters! I’m so happy Wayfair carries them. Shipping was lightening fast!. Tharin. Fayetteville, PA. Tue Jul 08 2025

18" H x 18" W x 2" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter can be used in AC and furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low pressure drop and long service life. Glasfloss Z-line series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

Please to have found the filters at a reasonable of price.. Naurmey. Baton Rouge, LA. Wed Jan 14 2026

Breathe in the fresh air your home deserves with the Soleus Air Whole House Air Purifier’s 4-stage True HEPA filtration system that sucks dust, pet dander, and allergens right out of the air. With a noise level of just 33 dB, the Soleus Air Whole House Air Purifier provides purified air at the volume of a whisper. With Alexa compatibility, you can change between the unit’s settings from anywhere in the house. A high CADR rating means this powerful air purifier delivers coverage to large-sized rooms up to 980ft2. Combining all these features with a laser that continuously measures air quality and automatically adjusts the unit’s settings makes the Soleus Air Whole House Air Purifier the ultimate solution for purified air throughout the home.

Justin. Palm Coast, FL. Tue Jan 14 2025

24" H x 24" W x 1" D

Fit is hard to find the right size filters for our furnace....so grateful you had them.. Kathryn. MO. Wed Sep 30 2020

20" H x 20" W x 1" D

It really works massive dust reduction. Talia Marie. Chandler, AZ. Wed Sep 04 2019

25" H x 18" W x 1" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low-pressure drop and long service life. Glasfloss Z-line series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally-bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

Great price on a quality product. These are recommended by OEM. Very happy with purchase.. David. Wed Dec 25 2024

Been using the 20x25x4 for multiple years now. Filters work great, I replace mine every 90 days in my house. Never had any issues or concerns about quality or construction of the filters. I've seen many complaints about the 1" thick filters and while I understand their concerns; a 1" thick filter is old technology and should consider getting a larger filter box. I find the complaints about the tabs holding the pleats in the filter where you may have to push a few back trivial. You're buying a MERV 11 equivalent disposable filter, again DISPOSABLE. It wasn't long ago when everyone was just using the blue fiberglass air filters.. There is a balance between retail cost and manufacturing cost. If they raised prices to appease everyone, they'd complain the filters are too expensive even though build quality is excellent!. Your Neighbor. Indiana. Wed Dec 21 2022

12.2" H x 8.7" W x 8.7" D

Breathe clean, fresh air with the Genuine Shark Clean Sense HEPA Replacement Filter, engineered for high-efficiency filtration. This advanced 3-stage filter system captures 99.98% of allergens and microscopic pollutants as small as 0.1 microns (based on IEST-RP-CC007 standards). Featuring Anti-Allergen technology, this multi-layered filter is designed to reduce airborne irritants, while an odor guard helps combat household odors and VOCs for a fresh home. For optimal performance, replace your filter every 6 to 12 months and enjoy purified air with Shark’s trusted filtration technology.

Shorty after replacing the filter with this new one, I could tell the difference. The room smelled fresher and the air quality reading changed on the air purifier. Terry. Washington, Dc. Fri Jun 12 2026

Get Simply Clean Air and keep your BISSELL air180 air purifier running its best buy replacing the filters every 6 months with genuine BISSELL replacement filters. Keeping up with filter maintenance means your home air purifier can keep capturing pet dander, pollen, dust, odors, and VOCs from your indoor air. The HEPA filter captures at least 99.97% of particles 0.3 microns and smaller, so you can breathe easier. BISSELL proudly supports BISSELL Pet Foundation and its mission to help save homeless pets. When you buy a BISSELL product, like this replacement filter, you help save pets, too. We're proud to design products that help make pet messes, odors and pet homelessness disappear.

I purchased this for my air purifier. It is made of very durable material. Thank you Wayfair’s.. Ellen. Lumber Bridge, NC. Thu Jan 08 2026

Ivation Replacement Activated Carbon Filter for IVADGOZHEPA Ivation 5-in-1 HEPA Air Purifier & Ozone Generator W/Digital Display Timer and Remote, Ionizer & Deodorizer 3,700 Sq/Ft

This is such an awesome replacement find!. Raymond. Palm Bay, FL. Thu Mar 12 2026

The recirculation kits performs multi-stage filtration and removes the odor from the gas and smoke that is sucked into the range hood, which removes harmful components and pollutants in the smoke, and effectively solves the problem of using range hoods in houses where the range hood cannot be exhausted. Do not try to clean the charcoal filter in the recirculation kit as it can not be cleaned, Please change the charcoal filter every 4-6 months (depending on hood usage)

25" H x 16" W x 1" D

The Mann Hummel MERV 8-rated electrostatically charged medium efficiency air filters offer you the protection needed from airborne particles and contaminants while improving the air quality for your residential or commercial applications. With the MERV 8 extremely low-pressure drop and high dust holding capacity, these filters are great for your utilization to supply your home or business with the air quality you wish for while optimizing the performance and longevity of your HVAC unit. Constructed from a two-piece frame provides rigidity and durability with double-wall thickness around the outer edge. Independently tested and verified for quality control (comparable with MPR 600). 100% synthetic, proprietary media withstands moisture and damage. Rust-resistant, expanded metal support grid made of galvanized steel. Industry-standard suggests to replace filters at least every 3 months

30" H x 16" W x 1" D

For allergen filtration performance, the Glasfloss ZL MERV 11 pleated air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 11 filter features the latest in media technology to achieve a MERV 11 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 11 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

Black

The ECOSELF air purifier features a 3-stage advanced filtration system, delivering hospital-grade air purity by capturing dust, smoke, pollen, and pet dander. It is ideal for large rooms up to 1400 sq ft, with ultra-quiet 20dB sleep mode for bedrooms, offices, and living spaces. Its user-friendly design includes auto mode, child lock, and compact dimensions, making it perfect for homes and workspaces. 1. 1400 sq ft coverage - Purifies large spaces every 30 mins. 2. 3-stage advanced filtration - Hospital-grade air purity, replace every 3-6 months (no washing). 3. User-friendly controls - 3 fan speeds, auto mode, child lock. 4. Ultra-quiet sleep mode - Near-silent (20dB) for undisturbed rest. 5. Compact design - 5.7"D x 11.8"W x 15.75"H 6. Certified safety - FCC, ETL, EPA certified. 7. Air quality monitor - Tracks and improves indoor air. 8. Pet & allergen friendly - Removes dust, smoke, pollen, dander, and odors. 

Great air purifier as a cat owner this is a life saving!! My House smell super clean now. Anonymous. Sun Jun 14 2026

25" H x 20" W x 2" D

For allergen filtration performance, the Glasfloss ZL MERV 11 pleated air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 11 filter features the latest in media technology to achieve a MERV 11 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 11 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

24" H x 18" W x 4" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter can be used in AC and furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low-pressure drop and long service life. Glasfloss Z-line series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally-bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

16" H x 18" W x 1" D

Specification Material: Aluminium alloy Compatible Devices: Air Conditioner, Furnace Color: Silver PackageInclude 1x Aluminum Furance Filter

Odors are no match for the Filtrete Odor Defense Carbon Pre Filter. This filter is made to help reduce common household odors from cooking, tobacco smoke, pets and more.

Expandable Furnace Filter:The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

High-Efficiency Replacement Filter--Easy to Replace, Long-Lasting Cleanliness:Made with high-quality composite material, this filter captures PM2.5, dust, pollen, pet hair, and other pollutants, enhancing air purification for your family's health. It lasts 6-12 months, with a convenient replacement reminder. Easy to install, it ensures fresh air for everyday use.

24" H x 18" W x 4" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter can be used in AC and furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low pressure drop and long service life. Glasfloss Z-line series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

25" H x 56" W x 5" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter Trion replacements can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

Good quality. Daljit. ON. Mon Oct 26 2020

24" H x 20" W x 1" D

Works better than most filters! Great product ! Love it!. Cs26. Mcminnville, TN. Mon Aug 01 2022

HEPA Filtration Replacement:Our 24 x 24-inch filter is perfect for residential and commercial use, capturing most airborne particles, including debris mites, pollen, mold, odor, etc. We recommend regularly replacing your filter to ensure your air stays clean.

Expandable Furnace Filter:The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

ORDERED FILTER WITH AIR CLEANER. F Wilson. NC. Tue Nov 26 2024

When it’s time to upgrade your home’s heating and cooling system, Durastar is the smart brand to choose. Durastar HVAC products are backed by resilient technology to provide energy- efficient performance at a value-friendly price. When weather is extreme, you’ll have reliable comfort with Durastar. Rigorous factory testing means you can trust our brand of HVAC products to control the climate in your home in even the toughest conditions. During warmer months, your home will stay cool with air conditioners that operate at a quiet volume. When temperatures drop, rely on gas furnaces that are engineered to withstand the cold. Durastar products are designed to maximize air flow to give you consistent heating and cooling in every interior space no matter the season. Durastar – efficient, enduring, engineered for comfort.

Exactly what we needed—simple, solid, and does the job perfectly. The build quality is sturdy and clean, and it fit our unit seamlessly without any hassle. Installation was straightforward, and everything lined up exactly as expected, which saved a lot of time. It’s one of those behind-the-scenes pieces that you don’t think much about—but when it fits right and works right, it makes all the difference. Great value for the price, and I’d absolutely order again for future installs.. Megan. Prescott, WI. Wed Apr 29 2026

24" H x 24" W x 4" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low-pressure drop and long service life. Glasfloss Z-line series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally-bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

20 x 25 x 4 Furnace Filter, MERV 11 HVAC Ac Filters,12-Month Electrostatic Pleated Air Conditioner Filters, 4-Pack (Actual Size: 20.47 x 25.20 x 3.98 Inch) for Capturing Dust, Smog, Pet Dander High-Efficiency Purification Multi-Layer Filtration Superior Compatibility Stable and Durable Wide Application Long-Lasting Performance Folded Item Dimensions(LxWxH): 25.20 x 3.98 x 4.33 in / 640 x 101 x 110 mm,Nominal Dimensions: 20 x 25 x 4 in,Filtration Grade: MERV 11,Plastic Body with Screws Width: 3.98 in / 101 mm,Number of Pieces: 4,Expanded Height: 20.47 in / 520 mm,Item Model Number: SEN-06,Item Length: 25.20 in / 640 mm,Plastic Body Width: 3.82 in / 97 mm,Net Weight: 14.11 lbs / 6.4 kg,Expanded Item Dimensions(LxWxH): 25.20 x 3.98 x 20.47 in / 640 x 101 x 520 mm

Filters work great for a good price.. Sandra. Murfreesboro, TN. Thu May 28 2026

25" H x 40" W x 4" D

For allergen filtration performance, the Glasfloss ZL MERV 11 pleated air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 11 filter features the latest in media technology to achieve a MERV 11 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 11 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

18 x 18, Inside

Stellar Air decorative air intake covers are Magnetic and are made to replace the unattractive exhaust fan covers in your living space. Our unique designs will enhance the room by adding wall art to your hall, living room, ceiling or any space of your house. We transform eyesore air filter covers into beautiful wall decor. Our unique “snap in“ magnetic design means our vent covers can be easily installed without any drilling or headaches. You just have to remove your old ugly metal grill and snap in our Stellar Air vents. We include a new metal frame box, in case you need it and to guarantee a perfect fit. Please order by filter size behind the grill or the duct opening, measure correctly and do not measure your existing cover.

Perfect fit. Well made. A huge upgrade from the standard vent returns. I’ll be ordering more.. Justin. Moody, TX. Fri Jun 12 2026

For reliable filtration effectiveness, the glasfloss ZL merv10 pleated 2-inch air filter can be used in AC and furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The Merv 10 filter features the latest in media technology to achieve a Merv 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low-pressure drop and long service life. Glasfloss Z-line series merv 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

25" H x 20" W x 4" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated 4 inch air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and are manufactured in an engineered gradient structure. The thermally-bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

Great product thank you. Anonymous. Fri May 31 2024

2"H x 144" W x 240"D, White

King Canopy Drawstring Replacement Cover is the accessory for replacing an old and worn canopy. It is attached to the frame with ball bungees. Frame, bungees, and walls are not included.

Great replacement. Ben. Middletown, NY. Wed Apr 29 2026

3.58" H x 19.37" W x 24.37" D

Professional Grade Aluminum Electrostatic Air Filter: Breathe Cleaner Air:The aluminum electrostatic air filter uses advanced technology to capture pollen, pet hair, and small particles. Reusable and durable, it reduces waste from frequent replacements. Perfect for long-term use in HVAC systems, central air conditioning. Get yours now and breathe cleaner air!

Expandable Furnace Filter:The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

Expandable Furnace Filter：The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

AirDoctor 2000 provides powerful purification for small rooms, medium/small bedrooms, nurseries, and home offices. It circulates the air in 305 sq. ft. 4x/hour or in 610 sq. ft. 2x/hour.

Exactly as described and looks just like pictures. Shipping was reasonable and fairly quick. Air Doctor is energy efficient and gets a decent size room purified. Reputable and reliable products. Enjoy Wayfair shopping!. Elvera. Springvale, ME. Sat Feb 07 2026

3-Stage Whole House Water Filter Replacement Pack with Polyphosphate Anti-Scale, GAC+KDF, and CTO Carbon Block Water Filters, Fits WGB32B-KDS

Expandable Furnace Filter:The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

20" H x 25" W x 4" D

Furnace Filter, MERV 16 HVAC Ac Filters,12-Month Electrostatic Pleated Air Conditioner Filters, 2-Pack for Capturing Dust, Smog, Pet Dander High-Efficiency Purification Multi-Layer Filtration Superior Compatibility Stable and Durable Wide Application Long-Lasting Performance Folded Item ,Nominal Filtration Grade: MERV 16,Plastic Body with Screws Width: 3.98 in / 101 mm,Number of Pieces: 2

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated 4 inch air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and are manufactured in an engineered gradient structure. The thermally-bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.