Yes, I use this.

I hate KNN low class car perfume.
With this, car is odorless. Good product.

It looks like a cup.
So, you put in in the cup holder.
I doubt the cup holder is positioned in direct sunlight. It doesn't melt in car under the hot sun.
It draws power from cigarette lighter socket.

Hope this helps.

wont work becuz 1 day how many times u open door/window?

onnce open all filtered air gone..replaced with dust again..unless u drive from johor to penang non-stop and no window opening (use smart tag) then ya...will have diff

else better wear gas mask

Scientifically, I am still not seeing how ionization of air by small machine like that is effective at all but as long as it kept the industry growing, just buy the most expensive that you can buy.