F&P Healthcare, which competes with Resmed and Respironics, increased its first-half gross profit margin to 63.3 per cent from 60.6 per cent in the same period a year earlier due to a favourable product mix, increased production through its Mexico plant and manufacturing efficiencies.
The company estimates it is tapping a potential market for its products of more than 100 million people a year, which could double to 200 million in 10 to 15 years' time.
"The record result is attributable to a continuation of our consistent growth strategy, which has driven strong revenue growth in both of our major product groups and further gross margin improvements," said chief executive Michael Daniell.
The company assumed direct responsibility for its respiratory care products in the US, its largest market, from mid-July after previous distributor CareFusion was taken over by Becton Dickinson.
It almost doubled the size of its US hospital sales and support team and established an expanded distribution centre in Kentucky.
The change meant revenue growth slowed at the company's respiratory and acute care/hospital division as the previous distributor sold down inventory as part of the transition, however it said it was confident that having its own US hospital team will spur future growth.
"With the move to a direct sales model in the US, as we have already done in our other major markets, we expect that the increased sales focus will enable us to maximise opportunities and increase revenue growth in the US," Daniell said.
In the first half, sales of the company's respiratory and acute care/hospital products increased 18 per cent to $199.6 million, while sales at its obstructive sleep apnea/homecare unit rose 23 per cent to $175.3 million.
Revenue from sales of higher margin recurring items, such as consumables and accessories, accounted for 83 per cent of operating revenue.
The company increased its spending on research and development by 14 per cent to $35.8 million.
It will pay a dividend of 6.7 cents a share on December 23, up from 5.8 cents in the year earlier period.
The company's shares last traded at $8.02, and have gained 28 per cent so far this year, outpacing a 9.3 per cent rise in the benchmark S&P/NZX50 Index.