Filterbuy Afb14x28x1m13pk4

24" H x 14" 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.

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.

Perfect OM filter replacement! Easy switchout and glad I did because the old one was dirty!!. Stacy. New Orleans, LA. Fri Feb 13 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

Dual 360° air intakes and Turbo Pet Mode deliver powerful, rapid purification for large spaces up to 1295 sq. ft. Real-time air quality monitoring, auto adjustment, and ultra-quiet 20dB sleep mode ensure fresh, clean air with effortless operation—ideal for homes with pets or light sleepers.

Fast delivery, turbo is kinda loud have it on low and on auto because air quality is very good right now have allergies really bad and cats with their fur so we will see how things go.. Deborah. US. Thu Mar 12 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

Good quality. Daljit. ON. Mon Oct 26 2020

25" H x 16" W x 1" D

Very good quality. Only kind we use.. Karen. Friendswood, TX. Fri Oct 06 2023

Say goodbye to stale air and hello to pure, refreshing breaths with our advanced 3-stage H13 HEPA air purifier! Designed for homes, offices, and bedrooms, it removes 99.97% of dust, Air Purifiers for Home Covers Up to 2600 Ft²,smoke, pollen, pet dander, and odors, capturing particles as tiny as 0.3 microns—so you and your loved ones breathe cleaner, healthier air every day.

works great in my house for dust. Lori. Bloomingdale, OH. Sat Jun 06 2026

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

24" H x 14" 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.

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

20" H x 20" W x 1" D

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

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

20" H x 14" 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

30" H x 14" 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

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.

14" H x 24" 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

The Clorox large room air purifier captures 99.97% of allergens and particulates* and 99.9% of viruses and bacteria** so you can breathe easier. The 3-stage 360° filter captures particulates in 3 filter layers and includes a True HEPA filter.

It has several controls to give us many options for the settings, which is nice to be able to dim the lights on the display. The only thing it has done for us so far is to show us that we did not really need to have our air purified.. Richard. Woodridge, IL. Wed Jun 17 2026

The Shark Air Purifier 4-Fan NANOSEAL Filter with true HEPA and Advanced Odor Lock captures 99.98% of large, small, & micro-sized particles from the air and is equipped with carbon for heightened protection against household odors and VOCs. Based on IEST-RP-CC007.3, 0.1–0.2 microns. Compatible with Shark Air Purifier 4 Fan Models (HE400, HE401, HE402, HE405).

Works so well. Couldn’t find this filter anywhere. Wayfair for the win!. Danielle. Center Moriches, NY. Tue Aug 01 2023

Yellow

Designed for restoration, renovation, and air quality control projects, this professional-grade HEPA air scrubber helps capture airborne particles, dust, mold spores, and other contaminants in demanding environments. The 3-stage filtration system works with an integrated UV-C light to support cleaner air circulation, while the negative air capability helps create controlled work zones and reduce cross-contamination. With variable speed control, durable construction, and low-noise operation, it is ideal for water damage restoration, mold remediation, construction cleanup, basements, garages, and job sites.

I ordered this for my husband's job. We've used it one time so far and it seems to be working well. It does use a lot of electricity since we had it plugged in we received an alert from our electric company. It is quite big. The picture make it looks smaller. I'd suggest adding a picture that would help show its size. Thank you. Anonymous. Mon Dec 08 2025

Combing 99.97% True HEPA performance with Odor Absorbing Carbon Pre-Filters, the Winix Replacement filter E provides protection against smoke, dust, pet dander, pollen, and other allergens as small as 0.3 microns. HEPA, which stands for High-Efficiency Particulate Arresting filter is recognized as the most effective method for removing contaminants and irritants from the air. For Winix FresHome P450.

Fast delivery and quality filter. Annie. Fishers, IN. Fri Mar 07 2025

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

WBM Smart Air Purifier Creates a purified ambiance and a healthier life. 3 in-1 Filtration function 1-pre-filter, 2- true HEPA filter, and 3- activated carbon filter captures the allergies and pets, Smokes and removes 99. 97% of pet dander, dust, pollen, odor, mold, etc. Effectively improving indoor air quality and freely enjoying fresh air at home. Keep your home purified with a WBM Smart Air Purifier. Create a purified ambiance and healthier life. WBM HEPA filter is easy to replace and dispose of without any tool required, ensuring you to replace your old filter in minutes Warm Maintenance Tip: When your air purifier filter gets old, the efficiency will decrease when your air purifier is running, leaving more pollutants in the air. Therefore, replacing your filters every 2-3 months is recommended. Instructions: Filters are sealed to protect their lifetime. Please remove the plastic packaging of the new filters before placing them into the air purifier.

Lasts a long time, I will purchase again in the future.. Gail Ann Olsen. Arab, AL. Tue May 19 2026

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

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

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

The T830 Air Purifier’s sleek and modern design effortlessly blends into any home decor, adding a touch of sophistication while ensuring the air you breathe is pristine. Stay informed about your indoor air quality with the T830 Air Purifier’s precision air sensor, which accurately detects fine dust levels and visually presents them through a numerical and color LED display. Feel the difference in every breath you take as you embrace a cleaner, fresher, and healthier living environment for you and your family.

We use this for our downstairs. So far working great.. Jo. Leetonia, OH. Mon Oct 13 2025

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)

Combing 99.97% True HEPA performance with Odor Absorbing Carbon Pre-Filters, the Winix Replacement Filter C (113050) provides protection against smoke, soot, micro-dust, pet dander, pollen, airborne allergens as small as 0.3 microns. HEPA, which stands for High Efficiency Particulate Arresting filter is recognized as the most effective method for removing allergens from the air. For Winix FresHome P150 and C545

I bought the winix to feel safer at home, and have no regrets. Filters are super easy to clean, its quiet and I recommend the system to anyone!. Valerie. Macon, GA. Wed Mar 17 2021

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

Waiting on my air purifier to use the filters. Regina. Boulder Creek, CA. Tue Sep 05 2023

The Winix replacement filter f cassette includes a pre-filter; true HEPA filter; advanced odor control (AOC) carbon filter. Fits winix u450 air purifier.

Replacement filters worked perfectly. Alan. Chicago, IL. Wed May 04 2022

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 12" 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.

23" H x 20" 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

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.

2 filters and they were packaged very well.. Kathleen. Haslett. Thu Apr 23 2026

16" H x 28" 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

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.

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

AIRDOCTOR AD2000 Genuine Filter Replacement - One Year Combo Pack Includes: One (1) UltraHEPA Filters & Two (2) Carbon/Gas Trap/VOC & Pre-Filter

Garrett. New York, NY. Tue Feb 03 2026

Great product and fast delivery. Anonymous. Sudbury, ON. Sun May 09 2021

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

ECOSELF H13 True HEPA Air Purifier for Home, Covers up to 1500 ft², 99.97% Filtered, Ultra-Quiet 20dB Sleep Mode, 50% More Efficient with Timer & Child Lock Tired of worrying about air quality? Welcome a new standard of clean and tranquility into your home. The ECOSELF Air Purifier seamlessly combines powerful, whole-room purification with whisper-quiet operation, engineered for those who refuse to compromise on health or comfort.

This little unit is a workhorse! This air purifier has changed the air quality in our home so dramatically- and so quickly! We love it. The air in our home was never “bad” but now that we’ve been using this little beast of a machine, we notice how fresh the air is and it isn’t even that loud when at a high-level. We’ve kept it on ‘auto’ and it stays whisper quiet most of the time. We love it and wish we would’ve gotten it sooner.. Christopher. Buckeye, AZ. Thu Mar 12 2026

14" H x 14" W x 1" D

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

The iAdaptAir 2.0 Small HEPA Air Purifier delivers industry-leading cleaning power, capturing up to 99% of allergens, viruses, mold, and other pollutants. With a high clean air delivery rate of 177 CFM, it efficiently covers spaces up to 1,325 square feet. The 5-stage filtration system, including medical-grade HEPA and carbon filters, removes particles as small as 0.05 microns, helping to reduce allergy and asthma triggers. Featuring smart WiFi controls, an air quality sensor, and a quiet 25 dB operation, this air purifier provides a cost-effective solution for maintaining clean, healthy indoor air.

It works quite well, I’m not having the allergy fits like I was.. Darren Kelly. Oak View, CA. Tue Dec 23 2025

The science of pure air is complex, but our mission is simple: to inspire a thriving life for all through pure, healthy air technology, proven by science. AirDoctor delivers the most approachable, affordable professional air purification technology on the market, so our customers can thrive in health, wellness, and life. We obsess over every detail and go the extra mile to test and earn third-party validation, so anyone who seeks it can have peace of mind that the air they breathe is as pure as the science that goes into our solutions. AirDoctorⓡ is the first affordable air purifier that not only removes particles as small as 0.003 microns but also removes odors, gases, toxic ozone, and volatile organic compounds (VOC).

Works great. Kelly. Mt Pleasant, SC. Fri Dec 26 2025

20" 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.