Local brand NanoFIL self-developed KAF Sterilizing Nano-Filter make use of a compound of nano fiber and activated carbon by electrospinning. The filter is tested by authorities and proven to be effective against PM0.3 particles, including common allergens such as dust, pollen or dust mites. It also kills 99.99% bacteria. Suitable for babies/toddlers, elderly, people with sensitive respiratory tract and furry pet owners.