Owen Hartwell
experience
personally tested
domains covered
About Owen
Owen Raymond Hartwell is a mechanical engineer and precision cleaning specialist based in Denver, Colorado. Born in Portland, Oregon in 1987, he holds a B.S. in Mechanical Engineering from Oregon State University (2009) and a Professional Certificate in Industrial Maintenance Management from Colorado State University Online (2016).
Over 15 years working at the intersection of precision manufacturing, dental equipment, and independent consulting, Owen has developed one of the most hands-on bodies of knowledge in the ultrasonic cleaning space in North America. He has personally tested more than 70 ultrasonic cleaner models — from $40 consumer tanks to $2,000 semi-industrial units — evaluating frequency accuracy, cavitation performance, heat consistency, transducer longevity, and real-world cleaning outcomes across materials.
His consulting work has taken him across Colorado, Utah, and Wyoming, advising jewelry studios, independent watchmakers, firearms dealers, dental practices, and small diagnostic laboratories on equipment selection, tank sizing, and solvent compatibility. That breadth of application is what makes his writing genuinely useful — he has seen the same $300 machine succeed or fail depending entirely on how it was set up and used.
"I write for the person standing in front of a shelf full of options at 11pm, trying to figure out if a $60 tank will actually clean their grandmother's ring without destroying it. I've been that person — but I've also been the technician who had to fix the mistake afterward."
— Owen R. Hartwell
Career Timeline
2009 – 2013
Junior Mechanical Engineer — Precision Optics Manufacturer, Portland, OR
First sustained professional contact with ultrasonic cleaning systems. Daily use of benchtop tanks for lens component degreasing and micro-particle removal on optical assemblies.
2013 – 2018
Senior Maintenance & Equipment Specialist — Dental Supply Distributor, Denver, CO
Hands-on daily management of benchtop and professional ultrasonic cleaners for dental instrument and handpiece decontamination. Began writing internal product evaluation reports — the origin of his editorial voice.
2018 – 2022
Independent Cleaning Equipment Consultant — Colorado, Utah & Wyoming
Advised jewelry studios, independent watchmakers, firearms dealers, and small diagnostic labs on ultrasonic equipment selection, tank sizing, transducer specifications, and solvent compatibility protocols.
2022 – 2024
Freelance Technical Writer & Product Reviewer
Tested 70+ ultrasonic cleaner models across consumer, prosumer, and semi-industrial tiers. Built a recognized editorial voice in the watchmaking and jewelry communities. His evaluations have informed purchasing decisions across the jewelry, watchmaking, and dental communities, reaching independent studios and small diagnostic labs throughout Colorado, Utah, and Wyoming.
2024 – Present
Lead Author & Content Director — Sonirity.com
Operates a dedicated test bench at home for structured, reproducible product evaluations. Oversees all editorial content at Sonirity.com. Also runs The Clean Bench, a Substack newsletter on precision cleaning — currently in development.
Areas of Expertise
Editorial Methodology
Hands-on bench testing
Every product Owen covers is physically tested on his dedicated home bench — never based on press releases or spec sheets alone. Tests include residue analysis, material safety checks, and temperature consistency.
Real-world application scenarios
Each cleaner is evaluated against the actual use cases most readers face: rings and gemstones, watch parts, gun components, dental tools, and optical elements.
Honest verdicts — including negatives
Owen publishes negative findings. If a product underperforms, damages materials, or misrepresents its frequency specs, readers will know. Affiliate relationships never override editorial conclusions.
Regular updates
Buying guides and top-pick articles are reviewed and updated at least every 6 months as new models enter the market and long-term durability data becomes available.
Find Owen Online
Transparency & Editorial Independence
Our commitment to honest content
Products recommended on this site have either been personally tested by Owen, or are clearly identified as based on verified user reports and manufacturer specifications. Owen's professional background, consulting history, and test methodology are detailed above and verifiable through his public profiles.