What he NEEDS to do is:
Replace the clogging Lint Filter on the automatic Clothes Dryer with a cyclone. Clothes would dry their fastest, with no loss of airflow through the dryer as the cyclone collects the lint - unlike the lint screens used presently. The cyclone should be 'on top' so you can see the lint collect, and know when it's time to empty. He should pair it with the CounterRotator washing machine and sell it in America. In the USA, we are just now getting into front loading washers in a big way - after decades of top loaders. A Dyson washer and dryer, each with UNIQUE features, would be a huge seller.