{"product_id":"austin-air-immunity-machine-replacement-filter-fr444","title":"Austin Air Immunity Machine Replacement Filter (FR444)","description":"\u003cp\u003eGenuine Austin Air 8-phase replacement filter for the Immunity Machine. It combines two pre-filters, activated carbon, potassium iodide-impregnated carbon, two mineral-based media, 60 sq. ft. of medical-grade HEPA rated to capture 99.97% of particles at 0.3 microns and 99% at 0.1 microns, and a HEGA carbon cloth. Designed to last up to five years under normal home use.\u003c\/p\u003e\u003cp\u003eAustin says this filter also fits its other standard-size purifiers, so it can upgrade a HealthMate, HealthMate Plus or Bedroom Machine. Choose the white prefilter (FR444B) for a White or Sandstone unit, or the black prefilter (FR444A) for a Graphite, Black or Midnight Blue unit.\u003c\/p\u003e","brand":"Austin Air","offers":[{"title":"White","offer_id":67893978923202,"sku":"FR444B","price":695.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":67893978955970,"sku":"FR444A","price":695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0572\/6011\/4114\/files\/austin-air-immunity-machine-replacement-filter-fr444.jpg?v=1792564168","url":"https:\/\/geekvacuums.com\/products\/austin-air-immunity-machine-replacement-filter-fr444","provider":"Geek Vacuums","version":"1.0","type":"link"}