> How can a tiny box the size of a laptop, or even smaller I have a cheap purifier with humidifier from a major brand. It's huge. The filters are very big, air

> How can a tiny box the size of a laptop, or even smaller I have a cheap purifier with humidifier from a major brand. It's huge. The filters are very big, air intake is fully covered by 50x30cm of HEPA and carbon filters, stacked on each other. The humidifier is just a tank for water and a floating piece of plastic in it. That piece of plastic has another large "filter", that is soaking in that water. All air flows through it at all times. Very simple construction but also efficiency is pretty impressive. Still - it's a device to be used in a medium room, like 12-15 square metres. Above that it would not be as effective, for instance in a large office space this would be way to small. If you have a tiny box then it must but loud as hell :)