Air6plus is the most powerful air purifier in its size that break down virus, bacteria, molds, allergens, pollution, voc, and etc without using replacement filter. That also means you purifier is truly eco friendly because you only need to rinse and air dry before replace the filter back. Proudly made in Taiwan with superior quality and highest standard. Pco is a proven technology that NASA also use, so we have faith it will be the best way to purifier your air. Nasa spinoff page. 3 step process to purify your air: Step 1. Washable air filter traps large dust & particles Step 2. Patented Nano reactor destroys pollutants and harmful chemicals Step 3. Negative ion generator reduces floating particles Up to 360sqft. Perfect for home/travel Each set include:air6+ x 1 (included washable filter) usb c to c cable x 1wall charger x1user guide x 1.