Use cautionMedical device recall · FDA · Published March 2, 2026
Philips Respironics Trilogy Evo O2 Ventilator Software Issue: Obstruction Alarm May Fail
Philips Respironics recalls Trilogy Evo O2 ventilators with software version 1.05.15.00 due to potential obstruction alarm failure. Affected units may not trigger alarms within standard timeframes, risking breathing issues.
“Philips Respironics Trilogy Evo O2 Ventilator Software Issue: Obstruction Alarm May Fail.” GovInfoNow, updated August 18, 2026. https://govinfonow.com/recall/49854-philips-respironics-trilogy-evo-o2-ventilator-software-issue-obstruction-alarm. Based on FDA recall #Z-1647-2026 (https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-1647-2026%22&limit=1).
The FDA announced on March 2, 2026, that Philips Respironics is recalling its Trilogy Evo O2 continuous home-use ventilators due to a potential obstruction alarm delay. The agency issued the recall for Class I device Z-1647-2026 affecting 113,717 units distributed worldwide.
How to tell if you have it
Brand: Philips Respironics
Product: Trilogy Evo O2
Software Version: 1.05.15.00
Device Type: Continuous home-use ventilator
Quantity: 113,717 units
The hazard
According to the FDA, the obstruction alarm on some units may not trigger within the required timeframe and could take up to four breaths to activate. This delay poses a risk to patient safety during ventilation.
Context
GovInfoNow's records show Philips Respironics has issued 25 other recalls since June 12, 2018. Recent similar recalls include the Trilogy Evo Ventilator Software Issue from March 2, 2026, and the SimplyGo Mini Battery Kit Recall from October 7, 2025. Other recent recalls of similar products include the Philips IntelliVue Multi Measurement Server X2 Recall (October 31, 2025), the Philips IntelliVue MX40 Recall (October 31, 2025), and the Philips IntelliVue MP40 Monitors Recall (October 31, 2025).
How to tell if you have this one
Check for the Philips Respironics Trilogy Evo O2 ventilator with software version 1.05.15.00. All model numbers, UDI, and serial numbers are affected.
Brand
Philips Respironics
Category
Medical device
FDA recall event · 4 products
All 4 products in this recall
FDA lists each product line separately under one recall event. Check your product description, lot or code numbers against each row. Every row shares the hazard and remedy on this page.
Classification
Class I
Status
Ongoing
Distribution
Worldwide Distribution. US Nationwide, Argentina, Austria, Australia, Bosnia and Herzegovina, Bangladesh, Belgium, Bulgaria, Bolivia, Brazil, Bahamas, Canada, Switzerland, Chile, China, Colombia, Czech Republic, Germany, Denmark, Algeria, Ecuador, Estonia, Egypt, Spain, Finland, France, Georgia, French Guiana, Gibraltar, Greece, Guatemala, Hong Kong, Croatia, Hungary, Indonesia, Ireland, Israel, India, Italy, Jersey, Jordan, Japan, Kenya, South Korea, Kuwait, Lebanon, Lithuania, Morocco, Montenegro, North Macedonia, Myanmar, Martinique, Malta, Mexico, Malaysia, Nigeria, Netherlands, Norway, Nepal, New Zealand, Oman, Panama, Peru, French Polynesia, Philippines, Pakistan, Poland, Portugal, Paraguay, Qatar, Reunion, Romania, Serbia, Russia, Saudi Arabia, Sweden, Singapore, Slovenia, Slovakia, Thailand, Tunisia, Turkey, Taiwan, Ukraine, United Arab Emirates, United Kingdom, Vietnam, Mayotte, South Africa, Zimbabwe.
Recall number
Product, codes & lots
Z-1646-2026
Philips Respironics Trilogy Evo, Software Version 1.05.15.00. Continuous home-use ventilator device.; All Model No.; All UDI; All Serial No.
Z-1647-2026
Philips Respironics Trilogy Evo O2, Software Version 1.05.15.00. Continuous home-use ventilator device.; All Model No.; All UDI; All Serial No.
Z-1648-2026
Philips Respironics Trilogy EV300, Software Version 1.05.15.00. Continuous home-use ventilator device.; All Model No.; All UDI; All Serial No.
Z-1649-2026
Philips Respironics Trilogy Evo Universal, Software Version 1.05.15.00. Continuous home-use ventilator device.; All Model No.; All UDI; All Serial No.
Based on the official FDA remedy
What to do — step by step
Check Software Version
Verify your ventilator's software version is 1.05.15.00.
Update Software
Contact Philips Respironics for software updates to resolve the issue.
Where it went and when
Where it was distributed
Distributed nationwide, and outside the U.S.
Nationwide
Not listed
FDA distribution: “Worldwide Distribution. US Nationwide, Argentina, Austria, Australia, Bosnia and Herzegovina, Bangladesh, Belgium, Bulgaria, Bolivia, Brazil, Bahamas, Canada, Switzerland, Chile, China, Colombia, Czech Republic, Germany, Denmark, Algeria,…” States read from FDA’s own wording; “not listed” means the notice does not name it.
Distributed nationwide, and outside the U.S.
Recall timeline
FDA published this recall 37 days after the firm started it.
1Firm started the recall
2FDA classified it Class I
3Published in FDA’s Enforcement Report
Dates from the agency record only; steps without a date are left out.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Official source: FDA Recall #Z-1647-2026 (March 2, 2026) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for Z-1647-2026 to see it in context.
Plain-language summary written by qwen3:4b on August 18, 2026, from the official record above. Not reviewed by a person — if it conflicts with the FDA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official FDA recall data; we don’t issue, amend or administer recalls.