❤【PERFECT FIT】- The premium bs-01 air purifier replacement filter is specfically designed for Slevoo BS-01 HEPA air purifier, NOT fits for Slevoo BS-03 air puri-fier, please check your puri-fier model before order. We recommend you to replace the BS01 air filter replacement every 3-6 months for optimal performance (depending upon your usage and environment)..❤【3 IN 1 TRUE HEPA FILTER】- Our BS-01 true hepa 3-stage replacement filter is specifically designed in 3-in-1 H13 True HEPA Filtration System. ①Fine Pre-filter ②H13 Medical Grade True HEPA Filter ③High-Efficiency Activated Carbon Filter..❤【3-STAGE ADVANCED FILTRATION】- Our BS-01 air purifier filter replacement combined with high efficiency filtration system is capable of attaching 99.97% all of the particles as small as 0.3 microns in diameter; Nylon Pre-filter attach larger particles in the air like dust, hairs, pet fur, lint; High-Efficiency Activated Carbon Filter helps you solve the problem of unpleasant odors from pets, cooking, smoke, wildfire, and VOC’s..❤【PREMIUM QUALITY】- Our BS-01 replacement filter is made of high quality non-woven fabric and activated carbon, both adopt advanced lower energy consumption and lower density structure technology verified by the manufacturer, with higher efficiency and less pressure to ensure maximum filtration. And the upgraded electrostatic electret filter technology which used in H13 true hepa filter ensures energy saving and a longer service life..❤【COST-EFFECTIVE FILTER】- Package includes 2 Pack BS-01 HEPA Filter Replacement. It is very easy to replace your BS-01 air filter, Simply take out the old filter from your device and install our new BS-01 filter in. Please take off plastic bag of new filter before using. After install, press and hold the Filter Reset button for 3s to reset..❤【SHOP WITH CONFIDENCE】- Lacvik adhere to provide cost effective and highest quality replacement parts, If you have any quality or compatibility problems with your bs01 filter, please contact our customer service team in time, and we will try our best to solve your problems.