{"product_id":"filtrete-18x24x1-air-filter-merv-11-2-pack-mpr-1000-captures-allergens-pet-dander-3-month-life","title":"Filtrete 18x24x1 Air Filter MERV 11 (2-Pack) — MPR 1000, Captures Allergens \u0026 Pet Dander, 3-Month Life","description":"\u003cp\u003e\u003cstrong\u003eFiltrete 18x24x1 MERV 11 (MPR 1000) is a two-pack of pleated 1-inch HVAC filters engineered to capture a wide range of airborne particles like pet dander, smoke, pollen and household dust while maintaining dependable airflow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis pair of Filtrete filters from 3M combines pleated media and Filtrete 3-in-1 technology to trap both large and microscopic particles without overly restricting your heating or cooling system. Each filter is sized to fit standard 18 x 24 x 1 openings (actual 17.68 x 23.68 x 0.81 in), carries a MERV 11 classification and an MPR 1000 rating, and is intended for routine replacement every 90 days to sustain performance and indoor air quality.\u003c\/p\u003e\n\n\u003ch3\u003eHow will these filters affect indoor air quality each season?\u003c\/h3\u003e\n\n\u003cp\u003eThese Filtrete filters are designed to intercept a mix of visible debris and finer particulates that commonly circulate in homes. By capturing lint, pollen and pet dander as well as smaller particles like smoke and smog, they reduce the overall particle load moving through your HVAC system.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRated MPR 1000 for enhanced microparticle capture (0.3–1.0 microns).\u003c\/li\u003e\n  \u003cli\u003eMERV 11 classification targets a range of household contaminants.\u003c\/li\u003e\n  \u003cli\u003ePleated construction increases media surface area for longer service life.\u003c\/li\u003e\n  \u003cli\u003eIntended 90-day replacement to keep filtration consistent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill using these filters impact my furnace or AC performance?\u003c\/h3\u003e\n\n\u003cp\u003eFiltrete designs these 1-inch pleated filters to balance filtration and airflow, helping your system operate efficiently when filters are replaced on schedule. Properly fitted and changed every three months, they minimize strain on HVAC fans while still capturing many airborne particles.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eLow-profile 1\" thickness fits most standard slots without modification.\u003c\/li\u003e\n  \u003cli\u003ePleated media reduces pressure drop compared with denser filters.\u003c\/li\u003e\n  \u003cli\u003eReplacing every 90 days avoids buildup that can impede airflow.\u003c\/li\u003e\n  \u003cli\u003eWorks across furnaces, air conditioners and central HVAC systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I know when to replace these Filtrete filters?\u003c\/h3\u003e\n\n\u003cp\u003eReplace the filters at least every 90 days for consistent performance; more frequent changes may be needed in homes with pets, smokers, or high dust levels. You can also use the Filtrete Smart App to scan the barcode on the packaging and set 30-, 60- or 90-day reminders so you never miss a replacement.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFactory barcode pairs with Filtrete Smart App for change reminders.\u003c\/li\u003e\n  \u003cli\u003eCheck visually: discolored or clogged pleats signal earlier replacement.\u003c\/li\u003e\n  \u003cli\u003ePets, allergies, or heavy pollution often require more frequent swaps.\u003c\/li\u003e\n  \u003cli\u003eFollow HVAC manufacturer guidance along with filter recommendations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat specific contaminants can these filters help reduce?\u003c\/h3\u003e\n\n\u003cp\u003eWith MPR 1000 and MERV 11 performance, these filters capture an array of particles that commonly circulate in homes, from large allergens to many fine particulates. While not a medical device, they reduce dust, pollen, pet dander and many smoke and smog particles that contribute to visible and invisible household dirt.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eLarge particles: lint, pet hair clumps and visible dust.\u003c\/li\u003e\n  \u003cli\u003eCommon allergens: pollen and some mold spores.\u003c\/li\u003e\n  \u003cli\u003eFine particulates: pet dander and many smoke or smog particles.\u003c\/li\u003e\n  \u003cli\u003eHelps keep HVAC components cleaner by trapping debris before it settles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Homeowners or renters who want stronger filtration than basic disposable filters without moving to bulky media models. This Filtrete 2-pack fits families with pets, seasonal allergies or anyone looking to reduce household dust and small airborne particles while maintaining reliable HVAC airflow. Choose this filter if you need a convenient, app-supported reminder system and a trusted brand with a track record in residential filtration.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I change Filtrete 18x24x1 MERV 11 filters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace at least every 90 days; change sooner with pets, smokers or heavy dust.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will these filters fit my standard 18 x 24 x 1 slot?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Actual size is 17.68 x 23.68 x 0.81 inches and fits standard 18x24x1 openings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Filtrete","offers":[{"title":"Default Title","offer_id":54593527677267,"sku":"B07CTPTG7Z","price":70.81,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1095\/4257\/2371\/files\/filtrete-front-packaging-18x24x1.jpg?v=1786772358","url":"https:\/\/findsworth.co.uk\/products\/filtrete-18x24x1-air-filter-merv-11-2-pack-mpr-1000-captures-allergens-pet-dander-3-month-life","provider":"Findsworth","version":"1.0","type":"link"}