3-Stage Composite Filtration System: The filter features a 3-in-1 design for higher purification efficiency. The pre-filter intercepts hair， fiber， large particles， dander， etc; the H13 true HEPA filter ensures efficient removal of small particles like air dust， pollen， etc; the activated carbon filter eliminates smoke， odors， cooking smell and more.

360° High Efficiency Purification: This true H13 HEPA air purifier replacement filter takes advantage of 360-degree air intake design to refresh air in an area of up to 1300 sq.ft in an hour. Besides， this replacement filter is capable of removing 99.99％ of pollutants down to 0.1 microns.

Easy Setup & Replacement: It is very simple to install and replace the filter， just need a few steps: ① rotate the bottom cover and remove; ② take out the old filter and replace with a new filter; ③ place the bottom cover back and secure; ④ press and hold the reset button for 3s. Please note: remove the plastic bag before installation.

Perfectly Compatible with Air Purifier: This true H13 HEPA replacement filter is perfectly compatible with Costway air purifier (ASIN: xxx). Please measure the size of your filter before purchasing. Dimension of this replacement filter: 7.5'' x 7.5'' x 6'' (L x W x H). Moreover， it is recommended to replace your filter every 3-6 months.

Wide Range of Application: This 3-in-1 composite true HEPA replacement filter is a perfect air purifier accessory for you to enjoy odor-free， fresh and healthy air anywhere you want， such as the bedroom， kitchen， living room， study room， etc. And it is also suitable for pet shops， labs， restaurants， offices and so on.

Material: Polypropylene + Activated Carbon

Overall Dimension: 7.6'' x 7.6'' x 6'' (L x W x H)

Purifying Area: 1300 sq.ft/hour

Filter Lifespan: 3-6 Months

Net Weight: 0.9 lbs

Package Includes：1 x Air Purifier Replacement Filter