{"product_id":"austin-air-immunity-machine-filter","title":"Austin Air Immunity Machine Filter, 8 Phase, Black or White (FR444A\/B)","description":"\u003ch3\u003eWhich machine do you own?\u003c\/h3\u003e\n\u003cp\u003eCheck the label on your Austin Air. Standard size units start with HM4, Junior units start with HM2, and the Austin it is the small personal unit. This filter is for a standard size unit.\u003c\/p\u003e\n\u003ch3\u003eFits\u003c\/h3\u003e\n\u003cp\u003eAustin Air Immunity Machine. This filter also fits the HealthMate, HealthMate Plus and Bedroom Machine, and legacy Allergy Machine and Pet Machine units.\u003c\/p\u003e\n\u003ch3\u003ePart number and color\u003c\/h3\u003e\n\u003cp\u003eFR444A is the black filter and FR444B is the white one. They are different parts. White filter for White and Sandstone units. Black filter for Black and Midnight Blue units.\u003c\/p\u003e\n\u003ch3\u003eWhat is in the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOne complete cartridge with its built in pre-filters\u003c\/li\u003e\n\u003cli\u003eFour granular layers: carbon, impregnated carbon, mineral media and impregnated mineral media\u003c\/li\u003e\n\u003cli\u003eHEPA\u003c\/li\u003e\n\u003cli\u003eA HEGA carbon cloth layer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to change it\u003c\/h3\u003e\n\u003cp\u003eThis filter is designed to last up to 5 years under normal home use. A room with heavy smoke, sawdust, chemical vapors or strong odors will use it up sooner. Change it when the air coming out starts to smell, or the airflow drops a lot.\u003c\/p\u003e\n\u003ch3\u003eWhat it does\u003c\/h3\u003e\n\u003cp\u003eEight phases: two pre-filters, four granular layers for gases, odors and chemicals, HEPA, then Austin Air's HEGA carbon cloth. This filter has no stated carbon weight.\u003c\/p\u003e","brand":"Austin Air","offers":[{"title":"Black","offer_id":49222096355583,"sku":"FR444A","price":694.99,"currency_code":"USD","in_stock":true},{"title":"White","offer_id":49222096388351,"sku":"FR444B","price":694.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0838\/1471\/1551\/files\/new-slot1_a2f2d06a-7f81-4628-b0d0-5fd41a1a2b37.png?v=1790544414","url":"https:\/\/purifierhaven.com\/products\/austin-air-immunity-machine-filter","provider":"Purifier Haven","version":"1.0","type":"link"}