Harbor365 is a global expert in flame- and arc-resistant protective clothing, offering region-specific solutions tailored for high-risk industries like Oil & Gas, Electric Utilities, and New Energy. Beyond flame and arc resistance, one critical safety standard that ensures comfort and protection in wet working environments is EN 343.
What is EN 343?
EN 343 is a European standard that defines the requirements for protective clothing against rain — including precipitation, fog, humidity, and ground moisture. It ensures that garments provide both waterproofing and breathability, keeping workers dry and comfortable even in harsh weather conditions.
Key Performance Parameters of EN 343
EN 343 classifies garments using two main performance indicators:
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Water Penetration Resistance (X)
Measures the fabric’s ability to resist water ingress.-
Class 1: Minimum protection
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Class 2: Intermediate protection
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Class 3 or 4: Highest level of waterproof protection
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Water Vapour Resistance (Y)
Indicates breathability — the ability of the fabric to allow moisture (sweat) to escape.-
Class 1: Low breathability
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Class 2: Moderate breathability
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Class 3 or 4: High breathability and comfort during prolonged wear
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(Note: EN 343 was updated in 2019 to include Class 4 levels for advanced protection.)
Why EN 343 Certification Matters
For professionals working outdoors — such as in oil rigs, power distribution, and renewable energy sectors — exposure to wind and rain is inevitable. EN 343-certified clothing ensures:
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Enhanced comfort and safety during extended shifts in wet weather
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Reduced risk of cold stress and fatigue
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Durability and performance reliability in extreme environments
Harbor365’s EN 343-Compliant Solutions
At Harbor365, every garment is engineered for real-world protection. Our EN 343-certified workwear combines waterproof membranes, sealed seams, and breathable fabrics to provide a perfect balance between weather resistance and comfort.
Our innovative product lines integrate multi-standard protection — meaning our gear can simultaneously meet EN ISO 11612 (flame resistance), EN 1149 (anti-static), and EN 343 (rain protection) standards. This makes Harbor365’s solutions ideal for workers in unpredictable and demanding conditions.
Conclusion
When it comes to protective workwear, compliance with EN 343 isn’t just about staying dry — it’s about ensuring performance, productivity, and safety under all weather conditions. With Harbor365, professionals can rely on advanced fabric technology and globally certified solutions that go beyond compliance to deliver real protection.
