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John Mathew

John Mathew is an experienced safety advisor at Bechtel USA, with over eight years in the field. He is committed to fostering safe work environments, ensuring compliance with safety regulations, and keeping abreast of the latest safety trends and standards.
36 posts
Hard Hat Color Codes & Meanings A Field Safety Guide
ByJohn Mathew
January 28, 2026

Hard Hat Color Codes & Meanings: A Field Safety Guide

  • PPE
  • Head Protection
What's a Ladder Cage and How To Use It Safely
ByJohn Mathew
January 24, 2026

What’s a Ladder Cage and How To Use It Safely?

  • Ladder
Levels of PPE
ByJohn Mathew
December 9, 2025

Levels of PPE: OSHA & EPA Guidelines for HAZMAT Safety

  • PPE
Laboratory Safety Symbols, Signs, and Their Meanings
ByJohn Mathew
October 1, 2025

50+ Laboratory Safety Symbols, Signs, and Their Meanings

  • Signs
Carbon Monoxide Levels
ByJohn Mathew
August 7, 2025

Carbon Monoxide Levels: Safe vs. Dangerous Concentrations

  • Carbon Monoxide
What's Safety Budget
ByJohn Mathew
March 16, 2025

What’s Safety Budget? 7 Strategic Steps for Business Owners

  • Management
What’s a Fire Tetrahedron
ByJohn Mathew
February 14, 2025

What’s a Fire Tetrahedron? Explaining Four Elements of Fire

  • Fire
Microwave Oven Safety
ByJohn Mathew
February 7, 2025

Microwave Oven Safety: 20 Tips Everyone Should Know

  • Home
  • Appliance
What’s Carbon Monoxide Poisoning_ Symptoms and Causes
ByJohn Mathew
February 4, 2025

What’s Carbon Monoxide Poisoning? Symptoms and Causes

  • Carbon Monoxide
What's Heat Stress? Definition, Symptoms, and Prevention
ByJohn Mathew
November 1, 2024

What’s Heat Stress? Definition, Symptoms, and Prevention

  • Stress
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