Made In Taiwan. Contains Two (2) 3-In-1 Premium H13 True Hepa Filter Replacement, Including Pre-Filter, H13 Grade True Hepa Filter, And High Efficiency Activated Carbon Filter | | Pre-Filter Traps Larger Particles In The Air Like Dust, Hairs, Pet Fur, Lint, And Prolongs The Life Of Hepa Filter | | H13 Grade True Hepa Filter Captures 99.9% Of Harmful Airborne Particles Down To 0.1 Microns In Size, Creating Fresh And Purified Air For You And Your Family | | High-Efficiency Activated Carbon Filter Neutralizes Household Odors From Pets, Cooking, Smoke, Wildfire, And Harmful VocS | | Easy To Replace And Disposable, No Tools Required. Replace Every 6-12 Months Depending On The Usage And Environment | |