{"product_id":"alvera-pureflow-11-filter-compatible-with-airsense-11-devices","title":"ALVERA PureFlow 11 Filter Compatible with AirSense 11 Devices","description":"\u003cstyle\u003e\n  .pw { font-family: Arial, sans-serif; line-height: 1.6; font-size: 1.05rem; color: #1a1a2e; }\n  .pw-intro { background: #eef3ff; border: 1px solid #c7d3ff; padding: 1.4rem 1.6rem; border-radius: 6px; margin-bottom: 1.8rem; }\n  .pw-bundle { margin-bottom: 2rem; }\n  .pw-bundle h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.8rem; color: #1a1a2e; }\n  .bundle-table { width: 100%; border-collapse: collapse; font-size: 1rem; margin-bottom: 1.2rem; }\n  .bundle-table thead tr { background: #1b4f72; color: #ffffff; }\n  .bundle-table thead th { padding: 0.75rem 1rem; text-align: left; font-weight: 700; letter-spacing: 0.02em; }\n  .bundle-table tbody tr:nth-child(odd) { background: #eaf4fb; }\n  .bundle-table tbody tr:nth-child(even) { background: #ffffff; }\n  .bundle-table tbody td { padding: 0.7rem 1rem; border-bottom: 1px solid #d0e6f5; vertical-align: middle; }\n  .badge { display: inline-block; padding: 0.2rem 0.6rem; border-radius: 4px; font-size: 0.82rem; font-weight: 700; letter-spacing: 0.03em; text-transform: uppercase; }\n  .badge-new { background: #d4edda; color: #155724; }\n  .pw-box { background: #f5f7fa; border: 1px solid #d5d9e2; padding: 1.3rem 1.5rem; border-radius: 6px; margin-bottom: 1.8rem; }\n  .pw-box h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.8rem; color: #1a1a2e; }\n  .pw-box ul { margin: 0; padding-left: 1.3rem; }\n  .pw-box ul li { margin-bottom: 0.5rem; }\n  .pw-specs { background: #f8f9fb; border: 1px solid #cfd4dc; padding: 1.3rem 1.5rem; border-radius: 6px; margin-bottom: 1.8rem; }\n  .pw-specs h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.8rem; color: #1a1a2e; }\n  .spec-table { width: 100%; border-collapse: collapse; font-size: 1rem; }\n  .spec-table th { width: 32%; background: #e4e7ec; font-weight: 700; padding: 0.75rem 0.9rem; border: 1px solid #bfc5ce; text-align: left; vertical-align: top; }\n  .spec-table td { padding: 0.75rem 0.9rem; border: 1px solid #bfc5ce; vertical-align: top; }\n  .pw-schedule { background: #f5f7fa; border: 1px solid #d5d9e2; padding: 1.3rem 1.5rem; border-radius: 6px; margin-bottom: 1.8rem; }\n  .pw-schedule h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.8rem; color: #1a1a2e; }\n  .schedule-table { width: 100%; border-collapse: collapse; font-size: 1rem; }\n  .schedule-table thead tr { background: #1b4f72; color: #ffffff; }\n  .schedule-table thead th { padding: 0.75rem 1rem; text-align: left; font-weight: 700; }\n  .schedule-table tbody tr:nth-child(odd) { background: #eaf4fb; }\n  .schedule-table tbody tr:nth-child(even) { background: #ffffff; }\n  .schedule-table tbody td { padding: 0.7rem 1rem; border-bottom: 1px solid #d0e6f5; vertical-align: top; }\n  .pw-note { background: #fff8e1; border-left: 4px solid #f0a500; padding: 1rem 1.2rem; border-radius: 0 6px 6px 0; font-size: 0.97rem; margin-bottom: 1.8rem; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"pw\"\u003e\n\n  \u003ch2\u003eALVERA PureFlow 11 Filter Compatible with AirSense 11 Devices\u003c\/h2\u003e\n\n  \u003cdiv class=\"pw-intro\"\u003e\n    \u003cp\u003eThe Alvera PureFlow 11 is a precision-cut disposable air filter designed as a compatible fit for AirSense 11 devices. Each filter slots directly into the machine's filter compartment, trapping dust, pollen and other airborne particles before air enters the device, protecting the motor and supporting clean airflow night after night.\u003c\/p\u003e\n    \u003cp\u003eFresh filters are one of the simplest ways to keep a machine performing well: a clean filter maintains airflow, reduces strain on the motor and supports airflow hygiene. The PureFlow 11 is available in 10, 20 and 30 packs, so a full year of regular changes can be covered in a single order.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"pw-bundle\"\u003e\n    \u003ch3\u003ePack Options\u003c\/h3\u003e\n    \u003ctable class=\"bundle-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eRef\u003c\/th\u003e\n          \u003cth\u003eGTIN\u003c\/th\u003e\n          \u003cth\u003ePack Size\u003c\/th\u003e\n          \u003cth\u003eCondition\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e58110\u003c\/td\u003e\n          \u003ctd\u003e5065027735149\u003c\/td\u003e\n          \u003ctd\u003e10 filters\u003c\/td\u003e\n          \u003ctd\u003e\u003cspan class=\"badge badge-new\"\u003eNew\u003c\/span\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e58120\u003c\/td\u003e\n          \u003ctd\u003e5065027735156\u003c\/td\u003e\n          \u003ctd\u003e20 filters\u003c\/td\u003e\n          \u003ctd\u003e\u003cspan class=\"badge badge-new\"\u003eNew\u003c\/span\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e58130\u003c\/td\u003e\n          \u003ctd\u003e5065027735163\u003c\/td\u003e\n          \u003ctd\u003e30 filters\u003c\/td\u003e\n          \u003ctd\u003e\u003cspan class=\"badge badge-new\"\u003eNew\u003c\/span\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"pw-box\"\u003e\n    \u003ch3\u003eKey Features\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCompatible fit\u003c\/strong\u003e - precision-cut to fit the filter compartment of AirSense 11 devices\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eEffective particle filtration\u003c\/strong\u003e - traps dust, pollen and airborne particles before air enters the machine\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eProtects the device\u003c\/strong\u003e - a clean filter maintains airflow and reduces strain on the motor\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSimple to change\u003c\/strong\u003e - slides into the filter compartment in seconds, no tools required\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eThree pack sizes\u003c\/strong\u003e - 10, 20 or 30 filters to suit any change routine and stock level\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDisposable design\u003c\/strong\u003e - fit a fresh filter on schedule rather than washing and reusing\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eIndependent compatible product\u003c\/strong\u003e - an Alvera brand filter, not an original manufacturer part\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"pw-specs\"\u003e\n    \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n    \u003ctable class=\"spec-table\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003ctd\u003eAlvera\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eProduct\u003c\/th\u003e\n          \u003ctd\u003ePureFlow 11 disposable air filter\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eRefs\u003c\/th\u003e\n          \u003ctd\u003e58110 (10 pack), 58120 (20 pack), 58130 (30 pack)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eCondition\u003c\/th\u003e\n          \u003ctd\u003eBrand new, sealed\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eCompatibility\u003c\/th\u003e\n          \u003ctd\u003eAirSense 11 devices\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eType\u003c\/th\u003e\n          \u003ctd\u003eDisposable, non-washable\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003ePack sizes\u003c\/th\u003e\n          \u003ctd\u003e10, 20 or 30 filters\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"pw-schedule\"\u003e\n    \u003ch3\u003eFilter Change Schedule\u003c\/h3\u003e\n    \u003ctable class=\"schedule-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eTask\u003c\/th\u003e\n          \u003cth\u003eFrequency\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eInspect the filter for dust build-up or discolouration\u003c\/td\u003e\n          \u003ctd\u003eWeekly\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eFit a fresh filter\u003c\/td\u003e\n          \u003ctd\u003eMonthly, or sooner if visibly soiled\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eChange more frequently in dusty environments or during high pollen seasons\u003c\/td\u003e\n          \u003ctd\u003eEvery 2 weeks\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"pw-note\"\u003e\n    \u003cstrong\u003ePlease note:\u003c\/strong\u003e the PureFlow 11 is an independent compatible filter by Alvera and is not an original manufacturer part. Filters are disposable and should not be washed or reused. This filter fits AirSense 11 devices only; for S9 Series (AirSense 9) and AirSense 10 machines use the Alvera PureFlow 10, and for AirMini travel devices use the Alvera PureFlow AirMini, both available separately.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Elarix Medical","offers":[{"title":"Pack of 10","offer_id":56203401199994,"sku":"REC1870C01","price":7.99,"currency_code":"GBP","in_stock":true},{"title":"Pack of 20","offer_id":56381036298618,"sku":"REC1870C02","price":12.99,"currency_code":"GBP","in_stock":true},{"title":"Pack of 30","offer_id":57123541320058,"sku":"REC1870C03","price":14.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/1281\/4458\/files\/FullSizeRender_23d20170-4508-44fe-a60a-39659aa30aea.jpg?v=1785262591","url":"https:\/\/www.cpapsupply.co.uk\/de\/products\/alvera-pureflow-11-filter-compatible-with-airsense-11-devices","provider":"CPAP Supply UK","version":"1.0","type":"link"}