1. How large an area can it clean the air?
Dear,It can clean for 3-30m³(<10㎡)space.
2. Even though it is so small, can it be used to clean the air efficiently in a medium size room?
Yes,it can be used for 3-30m³ ( <10㎡)space,it can efficiently remove the Odor ,bacteria, formaldehyde, virus, etc.
3. How long does it run between charges?
After full charge(it will take 3 hours),it can work 4 hours.
4. Can you keep this plugged in say for 9 hours if you want to place it next to you while sleep at night?
Dear, if the product is charged and used, it can work for 9 hours, just like normal built-in li-battery device.thanks.
5. Is there supposed to be a noticeable difference in fan speed or anything between the 2 settings?
Dear, because on the red light mode, the fan speed is faster, normal in the room or smaller space,just use the green light mode, it can work more than 4 hours,and can quickly remove the bad smell, bacteria,viruses, fomaldehyde and so on, it is very useful for small space(3-30m³).
6. Is this 110 or 220 volts?
It is built in lithium ion battery, it can be recharged with USB charging cable , it's powered by USB DC5V.In other words, you only need a computer or an adapter to support it.
7.Where is it made?
It is made in China.
It uses a new type of nano-ceramic as a dielectric material, Nano-titanium Dioxide Catalytic coating.When the air passes through the Low-Temperature Plasma discharge area, generating lots of various ions and atoms,and to actively break the chemical bond of the polluted air or the bacteria,Therefore,the harmful substances such as Odor and Bacteria and Virusesi in the air are quickly removed.
The Low-temperature Plasma technology has been widely used environment protection area.