Marcus & Marcus Portable Ionized Air Purifier is a portable and lightweight. Our air purifier is ozone-free, meaning it does not use zone technology to remove harmful particles from the atmosphere. Instead, we use a safe ionic purification technology that uses 20 million negative ions to remove PM2.5 particles and pollen from the air surrounding you. Our air purifier is ultra quiet so you can continue going the things you love with disruption. It's also easy to operate. The device is also rechargeable via USB and lasts up to 30 hours. It's time to take control of your health, starting with the air you breathe