Spray paints causing hair loss? (Photo)

Anything is possible. But the chances of spray paint in this situation directly impacting hair loss would be quite low. If it were, I would suspect you would have a toxic response with possible lung issues skin and other systemic issues too. In other words you would be unwell. If for any reason you are concerned especially about your general health do see your physician promptly for review.

Not much is reported on hair loss and paint. When painting always try to use no VOC (volatile organic compounds) as volatile organic compounds in many oil based paints are dangerous to your health and longevity.

spray paints could produce an allergy which might cause you to lose hair.  Maybe you need better protection like a mask and hat