THE OBJECTIVE
Headquartered in Hoover, Alabama, OHD has spent more than 30 years developing instruments and software that help safety professionals protect the workers who rely on respirators, hearing protection, and clean air monitoring.
OHD serves industries including manufacturing, healthcare, construction, mining, fire services, law enforcement, and the military with solutions spanning respirator fit testing, air sampling, and noise and vibration monitoring. Everything OHD does ties back to one mission: passionately protecting the health of the world’s workforce.
THE CHALLENGE: KEEPING PACE WITH AN EVOLVING MARKET
In an industry where respirator manufacturers are constantly evolving mask designs, materials, and form factors, OHD cannot afford long lead times when developing the adapters and components that interface with those respirators. OHD’s customers operate in highly specialized environments, from municipal fire departments to military installations to pharmaceutical clean rooms, each with unique respirator configurations or testing requirements.
Traditional manufacturing required OHD to forecast demand and maintain large inventories of every adapter variant: a costly and often imprecise approach. When a respirator manufacturer released a new mask model or updated an existing design, the tooling and production process was lengthy, delaying customers who needed to test that equipment without delay.
THE STRATEGIC SOLUTION: INTEGRATED ADDITIVE MANUFACTURING
In an industry where respirator manufacturers are constantly evolving mask designs, materials, and form factors, OHD chose to turn to additive manufacturing. Shapeways brought two key capabilities to make it work:

Tolerance Guidance
Expert advice on the critical tolerances that matter for additive manufacturing, ensuring OHD's adapter designs are optimized for reliable, accurate production from the start.

Quick Turnaround Times
Shapeways offered fast production and delivery so OHD can get adapter solutions to customers without delay, keeping pace with new respirator releases and specialized field requirements.
THE RESULTS

Digital Inventory
OHD can maintain a digital inventory rather than a physical one, eliminating the cost and imprecision of forecasting demand.

Support for Any Configuration
Flexibility to support even low-volume or legacy adapter configurations without traditional overhead.

Reduced Waste, Reduced Overhead
Shorter fulfillment times, reduced waste, and on-demand support for low-volume and legacy configurations.
REAL-WORLD APPLICATIONS
OHD’s solutions are trusted across some of the most demanding environments in the world.