I tig weld aluminized pipes. i have a vacum system i use but the other guy does not use his. i have tryed for some time to have the forman talk to him. does not work very well. i have noticed i cant breath very well anymore, im having lots of troubles. can anyone tell me how bad the fumes are on my lungs. i also have asthma so that makes it even worse. i didnt know if it was the fumes or if im just always having problems cause of the asthma. its been worse the last year. any info would be good.  thanks