{"product_id":"festool-577975-hf-sys-air-h-hepa-main-filter","title":"Festool 577975 HF-SYS-AIR H\/HEPA Main Filter","description":"\u003csection data-aplus\u003e\u003cdetails id=\"product-features\" class=\"acc\" open\u003e\u003csummary\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e \u003cdiv class=\"features\"\u003e \u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-inside\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/airflow.svg\" alt=\"airflow\" class=\"aplusicon\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eMore Filter Surface\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003eThe TripleV filter shape packs a large surface area into a compact space, so the filter loads up slower and keeps working longer before it needs replacement.\u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-inside\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/certifications.svg\" alt=\"certifications\" class=\"aplusicon\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eH\/HEPA Filtration\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003eBuilt for dust class H\/HEPA performance with more than 99.995% filtration efficiency, this filter is made for capturing very fine, health-hazard dust from the air.\u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-inside\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/tool-free-change.svg\" alt=\"tool-free-change\" class=\"aplusicon\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eFast Filter Swaps\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003eThe Festool 577975 HF-SYS-AIR H\/HEPA Main Filter is designed for quick, tool-free replacement, which makes routine maintenance easier and helps keep downtime short.\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails id=\"product-overview\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\" data-product-summary\u003e \u003cp\u003eThe Festool 577975 HF-SYS-AIR H\/HEPA Main Filter is a replacement main filter made for the Festool SYS-AIR HEPA air purifier. This is a main filter designed for filtering fine dust from the air in workshop and jobsite environments. Model Number 577975. If you run a SYS-AIR unit and need to maintain high filtration performance for hazardous airborne dust, this is the filter built for that job.\u003c\/p\u003e \u003cp\u003eThe big story here is the TripleV filter design. Festool uses that shape to fit a larger filter surface into a compact footprint, which matters because more surface area helps the filter capture more dust while reducing rapid clogging. In plain terms, that means steadier performance, less frequent replacement, and longer service life compared to a more basic compact filter layout.\u003c\/p\u003e \u003cp\u003eThis filter is built for dust class H\/HEPA use, with a stated filtration efficiency of more than 99.995%. That matters in spaces where very fine dust is the problem, especially when the air needs to be cleaned of highly hazardous particles. If you are working around airborne dust that cannot just be pushed around the shop, the filtration level is the reason this filter exists.\u003c\/p\u003e \u003cp\u003eFestool also kept maintenance practical. The main filter is easily accessible and designed for tool-free replacement, so you can remove and install it quickly when service time comes. That is a real benefit on a busy job or in a working shop because air filtration only helps if the system is easy enough to keep in proper condition.\u003c\/p\u003e \u003cp\u003eAs a replacement part, the fit matters just as much as the filtration. This filter is specifically made for the Festool SYS-AIR air purifier in dust class H\/HEPA applications. It is not a general-purpose air filter and it is not meant to be treated like a universal substitute. If you own the SYS-AIR HEPA unit, this is the correct purpose-built main filter for that platform.\u003c\/p\u003e \u003cp\u003eWho should buy it? Shop owners, remodelers, finish carpenters, installers, and other pros who rely on cleaner air in enclosed workspaces will get the most out of it. It also makes sense for serious DIY users who already own the Festool SYS-AIR system and want to keep the unit performing the way it was designed to. Bottom line: this is a system-specific filtration component, and the value is in maintaining top-level air cleaning performance instead of trying to stretch an old filter past its useful life.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eDesigned to Keep Air Cleaner Longer\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"img\"\u003e\n\u003cimg src=\"https:\/\/cdn.anglera.com\/assets\/74d6ed76-fe0d-4d23-a9db-1f8749ca9ef2\/50185735536934_f15a04a91650.jpg\" alt=\"Festool 577975 HF-SYS-AIR H\/HEPA Main Filter shown as a TripleV replacement filter for SYS-AIR HEPA air filtration in a workshop dust-control setup\" class=\"tnblock-img\"\u003e \u003c\/div\u003e \u003cdiv class=\"copy\"\u003e\n\u003cp\u003eThe shape of this filter is not just for looks. Festool uses the TripleV layout to maximize usable filter area in a compact housing, which helps the SYS-AIR HEPA air purifier keep filtering fine dust efficiently without clogging as quickly.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTripleV design increases filter surface area in limited space\u003c\/li\u003e\n\u003cli\u003eMade for filtering fine airborne dust in SYS-AIR HEPA applications\u003c\/li\u003e\n\u003cli\u003eTool-free replacement keeps maintenance simple\u003c\/li\u003e\n\u003c\/ul\u003e \u003c\/div\u003e \u003c\/div\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails id=\"product-whats-included\" class=\"acc\" open\u003e\u003csummary\u003e\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e \u003cdiv class=\"tnincluded-wrapper\"\u003e \u003cul\u003e\n\u003cli\u003e(1) Main Filter\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails id=\"product-key-specifications\" class=\"acc\" open\u003e\u003csummary\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e \u003ctable class=\"aplusspecs\"\u003e \u003ctr\u003e\n\u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/model-number.svg\" alt=\"model-number\" class=\"aplusicon\"\u003e Product Type\u003c\/th\u003e\n\u003ctd\u003eMain Filter\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e\n\u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/certifications.svg\" alt=\"certifications\" class=\"aplusicon\"\u003e Filtration Class\u003c\/th\u003e\n\u003ctd\u003eH\/HEPA\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e\n\u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/airflow.svg\" alt=\"airflow\" class=\"aplusicon\"\u003e Filtration Efficiency\u003c\/th\u003e\n\u003ctd\u003e\u0026gt; 99.995%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e\n\u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/tool-free-change.svg\" alt=\"tool-free-change\" class=\"aplusicon\"\u003e Replacement Style\u003c\/th\u003e\n\u003ctd\u003eTool-Free\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e\n\u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/weight.svg\" alt=\"weight\" class=\"aplusicon\"\u003e Weight (lbs)\u003c\/th\u003e\n\u003ctd\u003e3.2 lbs\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e\n\u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/specs.svg\" alt=\"specs\" class=\"aplusicon\"\u003e Application\u003c\/th\u003e\n\u003ctd\u003eFiltering Fine Dust From the Air\u003c\/td\u003e \u003c\/tr\u003e \u003c\/table\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails id=\"product-compatibility\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e \u003cdiv class=\"compat-list\"\u003e \u003cdiv class=\"compat-row\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/specs.svg\" alt=\"specs\" class=\"icon-sm\"\u003e\u003cdiv\u003e\n\u003cstrong\u003eAir Filtration Platform\u003c\/strong\u003e\u003cdiv class=\"compat-detail\"\u003eFits the Festool SYS-AIR HEPA air purifier.\u003c\/div\u003e\n\u003c\/div\u003e \u003c\/div\u003e \u003cdiv class=\"compat-row\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/certifications.svg\" alt=\"certifications\" class=\"icon-sm\"\u003e\u003cdiv\u003e\n\u003cstrong\u003eDust Class Use\u003c\/strong\u003e\u003cdiv class=\"compat-detail\"\u003eDesigned for SYS-AIR air purifier applications in dust class H\/HEPA filtration.\u003c\/div\u003e\n\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails id=\"product-applications-uses\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eBuilt For\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e \u003cdiv class=\"tags\"\u003e \u003cspan class=\"tag\"\u003eWorkshop Air Filtration\u003c\/span\u003e \u003cspan class=\"tag\"\u003eRemodeling\u003c\/span\u003e \u003cspan class=\"tag\"\u003eGeneral Contracting\u003c\/span\u003e \u003cspan class=\"tag\"\u003eFinish Carpentry\u003c\/span\u003e \u003cspan class=\"tag\"\u003eWoodworking\u003c\/span\u003e \u003cspan class=\"tag\"\u003eFine Dust Control\u003c\/span\u003e \u003c\/div\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails id=\"product-warranty\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eWarranty \u0026amp; Support\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e \u003cdiv class=\"warranty-row\"\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/warranty.svg\" alt=\"warranty\" class=\"icon-sm\"\u003e \u003cdiv class=\"warranty-text\"\u003e No manufacturer's warranty. \u003c\/div\u003e \u003c\/div\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails id=\"product-tool-nut-take\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eTool Nut's Take\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e \u003cdiv class=\"eyebrow\"\u003eTool Nut's Take\u003c\/div\u003e \u003ch3\u003eFestool 577975 HF-SYS-AIR H\/HEPA Main Filter Keeps the SYS-AIR Doing the Real Work\u003c\/h3\u003e \u003cp\u003eIf you bought the SYS-AIR for serious air cleanup, this is the replacement filter that keeps it operating at the level you paid for.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Anyone running a Festool SYS-AIR HEPA air purifier in a shop or enclosed work area where fine airborne dust is a real issue.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e The TripleV design gives you more filter area in a compact package, and the H\/HEPA rating with more than 99.995% filtration is the whole reason this filter matters.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is a system-specific replacement part for the SYS-AIR platform, so it is the right buy if you need proper fit and proper filtration, not a generic substitute.\u003c\/li\u003e \u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails id=\"product-faqs\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eCommon Questions\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eWhat does this filter fit?\u003c\/strong\u003e It is designed for the Festool SYS-AIR HEPA air purifier.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWhat kind of filtration does it provide?\u003c\/strong\u003e It is an H\/HEPA main filter with a stated filtration efficiency of more than 99.995%.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIs this a tool-free replacement?\u003c\/strong\u003e Yes. The filter is designed to be removed and installed without tools.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWhat is this filter used for?\u003c\/strong\u003e It is used for filtering fine dust from the air.\u003c\/li\u003e \u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003c\/section\u003e","brand":"Festool","offers":[{"title":"Default Title","offer_id":50185735536934,"sku":"577975","price":285.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/577968_1.jpg?v=1778422628","url":"https:\/\/www.toolnut.com\/products\/festool-577975-hf-sys-air-h-hepa-main-filter","provider":"Tool Nut","version":"1.0","type":"link"}