A CO₂ laser that weakens during a long run isn't always a tube failure. Unstable cooling, poor water flow, or a mismatch with the power supply can cause the same symptoms. This guide explains how heat affects tube performance, what machine details to prepare before requesting a quote, how to check the cooling loop, and which questions to ask a manufacturer about testing, lifespan and OEM support.

Puri Laser attended SIGN CHINA 2026 in Shanghai from September 15–17, showcasing 100W, 130W and 150W CO₂ laser tubes at Booth W2-B35. During the three-day event, our team met with customers and industry partners to discuss CO₂ laser tube selection, applications, cooling, service life and purchasing needs.

A CO2 laser tube doesn't have one fixed lifespan. Manufacturing, catalyst technology, cooling, operating current and maintenance all play a part. Puri Laser shares what actually affects CO2 laser tube life and why a properly operated tube can reach up to around 10,000 working hours.

Many buyers ask if one CO2 laser tube can be shipped. Technically yes, but for international delivery, Puri Laser sets the MOQ at 10 pcs because glass CO2 laser tubes are long, fragile, and need stable packaging to reduce transport damage.

Not every weak laser means it's time for a new tube. This guide explains how experienced engineers determine whether a CO₂ laser tube is reaching the end of its service life. Learn the real warning signs, avoid common misdiagnoses, and discover practical maintenance tips that help maximize laser performance.