"As well as the asbestos on his clothes, Mr Carey had a full head of hair, a moustache and sideburns in which asbestos dust would be trapped until liberated by movement from - say - a hug," he added.
Mr Carey, from Toddington, Bedfordshire, is now claiming damages from Vauxhall Motors, at whose Luton and Dunstable sites he worked between 1973 and 1979.
The car firm denies that Mr Carey was exposed to hazardous amounts of asbestos whilst working for Vauxhall or that he would have "disturbed asbestos in the fabric of the building".
Mr Swoboda told the court fibres lay dormant in Lydia Carey's body for 40 years before she developed lung cancer.
She was diagnosed in October 2017 with mesothelioma, an incurable cancer notorious for the agony suffered by its victims, and was just 60 when she died on November 27.
Vauxhall says all asbestos-related work at the plants was done by specialist external contractors and it operated an overalls washing scheme for its employees.
But, Mr Swoboda said the company had charged extra for the laundry service, and insisted that Mr Carey worked in close proximity to asbestos dust.
The couple wed in 1978, the court heard, and Mrs Carey regularly washed her husband's work overalls, he told the judge.
His work clothes were at times "black with dust", he added, which even penetrated into the turnups of his trousers.
"Once married, Mr Carey would change from his work clothes when he came home so as not to make the house dirty," said Mr Swoboda.
"Mrs Carey would knock and brush the dust off his work clothes, and she remembered washing his blue overalls."
Much of Mr Carey's work was carried on at Vauxhall's Dunstable plant, and Mr Swoboda claimed the factory was polluted by "huge quantities of asbestos".
He worked alongside men removing or applying asbestos lagging to pipes, and he recalled seeing workers mixing asbestos powder to paste.
At times he had to "walk through, kneel or lie on asbestos dust and debris on the floor to carry out his work", the barrister claimed.
"He swept asbestos dust and debris from the floor using a dustpan and brush".
Mr Carey claims Vauxhall neglected to warn him of the dangers linked to asbestos and should have provided him with protective equipment.
And Mrs Carey's indirect exposure to dust and fibres over a three-year window between 1976 and 1979 was enough for asbestos to do its deadly work, argued Mr Swoboda.
But Vauxhall's QC, Paul Bleasdale, suggested other sources for Mrs Carey's fatal illness.
Even if Mr Carey was exposed to asbestos when working for Vauxhall, it would have been "very occasional if not minimal", he argued.