{"product_id":"bofa-replacement-prefilter-for-ad350-unit","title":"BOFA Replacement PreFilter for AD350 Unit","description":"The efficiency of the Pre-Filter is directly related to the life of the HEPA in that the more particulates captured in it, the less can pass through and prematurely block the HEPA. Most Pre-Filters have an efficiency grading of F5 - F7.\u003cbr\u003e\u003cbr\u003e When plastics are being lasered, the particulate size generated is typically 0.2 microns. At this level of filtration the media has an efficiency of 25% in F5 to 65% in F7. When metals are being lasered the particulate size being generated is typically below 1 micron. This equates to an efficiency of 65 in F5 to 80% in F7.\u003cbr\u003e\u003cbr\u003e The BOFA range of fume purification systems have an F8 grade media which gives an efficiency of 80% at 0.2 microns and 95% at 1 micron","brand":"Bofa","offers":[{"title":"Default Title","offer_id":54222878048583,"sku":"BOFA A1030056","price":229.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/6028\/6791\/files\/0032662_bofa-replacement-prefilter-for-ad350-unit_cef16eab-aa84-4a5e-b291-3d8cef998f99.webp?v=1782304699","url":"https:\/\/sgeducation.ie\/products\/bofa-replacement-prefilter-for-ad350-unit","provider":"SG Education Ltd.","version":"1.0","type":"link"}