When removing paint, anything "on" the paint is also removed.
As I recall, Chamelion didn't have any requirement for room ventilation. Most model paint removal mediums are mild enough that ventilation isn't required.
A very safe rule of thumb would be, If ventilation is required, it probably isn't exactly safe for plastic. Laquer based paints can be used, but some care is required. Floquil will craze some plastics. Always save sprue material, and test the paint on it before painting the model.
Hope this helps,
Pete