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owen

owen

Joining time: 2026-07-06

This author is very low-key and hasn't written a personal biography yet.

To which class of medical devices does a medical air compressor belong?

Medical air compressors are common pneumatic‑powered equipment in healthcare facilities. In accordance with China’s Medical Device Classification Rules, they are generally classified as Class II medical devices. This article provides a detailed analysis of their classification criteria, regulatory…

What is the oil content in air, 0.003 mg/m³, in ppm?

This paper examines the conversion of an airborne oil concentration of 0.003 mg/m³ into ppm. Because oil mist and oil vapor are complex mixtures with no fixed molecular weight, they cannot be directly converted to volume-based ppm. The…

Air Compressor Operating Procedures

This document provides a detailed description of the standard operating procedures for air compressors, covering critical steps such as pre-startup inspections, startup procedures, in‑service monitoring, and shutdown and maintenance. Adhering to these standardized practices not only extends the…