till date, N95 mask is still the best protection mask
available..
the other alternative is to do your spraying in a well
ventilated area & you might wanna invest in an exhaust
fan..
Hmm i was told by an expert modeller that a gas mask is a must,
to prevent thinner poisoning, since the paint is slightly diluted
with thinner. So bo bian, even if place is well ventilated, its
better to play safe.