HEPA Filtration
HEPA Filtration is a high-quality air cleaning system used in buildings and facilities to remove tiny particles from the air. HEPA stands for High-Efficiency Particulate Air, but recruiters mainly need to know it's considered the gold standard for air cleaning. When candidates mention HEPA, they're typically talking about installing, maintaining, or upgrading air filtration systems that can catch very small particles like dust, allergens, and other contaminants. This is especially important in places like hospitals, clean rooms, or high-end commercial buildings where air quality is crucial.
Examples in Resumes
Installed and maintained HEPA Filtration systems in medical facilities
Upgraded commercial building ventilation with HEPA air purification systems
Led team of technicians in HEPA Filter replacement and maintenance programs
Typical job title: "HVAC Technicians"
Also try searching for:
Where to Find HVAC Technicians
Professional Organizations
Job Resources
Online Communities
Example Interview Questions
Senior Level Questions
Q: How would you design a HEPA filtration system for a hospital operating room?
Expected Answer: A senior technician should explain the importance of proper air flow, multiple filtration stages, and maintaining negative pressure. They should mention regular testing and maintenance requirements, and understanding of healthcare facility standards.
Q: What factors do you consider when upgrading an existing ventilation system to include HEPA filtration?
Expected Answer: Should discuss evaluating current system capacity, calculating air flow requirements, considering pressure drops, and planning for increased maintenance needs. Should also mention cost considerations and energy efficiency impact.
Mid Level Questions
Q: How do you properly maintain a HEPA filtration system?
Expected Answer: Should describe regular inspection schedules, proper filter replacement procedures, testing filter integrity, and maintaining documentation of service records.
Q: What are the signs that a HEPA filter needs replacement?
Expected Answer: Should mention monitoring pressure drops across filters, scheduled replacement intervals, visual inspections for damage, and understanding manufacturer specifications for filter life.
Junior Level Questions
Q: What is a HEPA filter and how does it work?
Expected Answer: Should explain that HEPA filters remove very small particles from air, understand basic maintenance procedures, and know the importance of proper installation.
Q: What safety procedures do you follow when replacing HEPA filters?
Expected Answer: Should discuss proper personal protective equipment (PPE), system shutdown procedures, and safe disposal of used filters.
Experience Level Indicators
Junior (0-2 years)
- Basic HEPA filter installation and replacement
- Understanding of air flow principles
- Basic system maintenance
- Safety procedures and PPE use
Mid (2-5 years)
- Complex system troubleshooting
- Filter efficiency testing
- System performance optimization
- Maintenance program management
Senior (5+ years)
- System design and specification
- Project management
- Team leadership and training
- Advanced problem solving and diagnostics
Red Flags to Watch For
- No understanding of basic air flow principles
- Unfamiliarity with safety protocols and PPE requirements
- Lack of knowledge about maintenance schedules
- No experience with system testing and verification
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