HUNTERSVILLE & BOONE – Two North Carolina companies making innovative products have raised new funds, according to filings with the U.S. Securities and Exchange Commission.

Akoustis Technologies, based in Huntersville, has raised a $15 million debt round.

Founded in 2014, Akoustis has created a new class of acoustic wave filters to improve the efficiency and signal quality of mobile wireless devices and enable the Internet of Things.

The company says Akoustis’ Bulk ONE filters originate from materials which exhibit 30 percent better acoustic performance when compared to the incumbent thin-film technologies deployed today.

Akoustis (Nasdaq:AKTS) traded at $6.64 a share June 4. The company disclosed the debt funding in a regulatory filing.

Boone firm lands $8M in equity

Pneuma Respiratory, based in Boone, has raised more than $8.1 million of a $15 million offering in equity, according to an amended regulatory filing.

The company makes a digital soft mist inhaler device designed to deliver a variety of medicines to the lungs. The device, which eliminates the need for a propellant, is accompanied by a mobile app that captures real-time dose verification data.

The inhaler has been evaluated in two clinical studies and demonstrated effective delivery of medicines to the lungs in chronic obstructive pulmonary disease (COPD) patients using small-molecule asthma and COPD medications.