If you are looking for a breath of fresh air, let the all-new BMW Fine Dust Filter give you exactly that. Especially developed for polluted city, BMW Fine Dust Filter comes with filtration performance of up to 99.5% for bacteria and allergens up to 0.3μm in size and filter out up to 70% of all fine particulate matter smaller than 2.5μm (PM2.5). BMW Fine Dust Filter available at BMW Authorized Dealers. From February 22, 2019 onwards, valid BSI customer will be able to take advantage of paying nominal upgrade to BMW Fine Dust Filter when air filter changed is due. For more information, please contact BMW Authorized Dealer or BMW Contact Centre at 1-401-269-269.