Lecture 4 - Safety Procedures in IAQ (PDF)

Lecture 4 - (9/24/24) - Safety Owner R Ryan Tags Notes Study Guide: Personal Protective Equipment (PPE) and Safety Procedures in IAQ (Chapter 4) 1. Objective Learn about the...

Lecture 4 - (9/24/24) - Safety Owner R Ryan Tags Notes Study Guide: Personal Protective Equipment (PPE) and Safety Procedures in IAQ (Chapter 4) 1. Objective Learn about the various types of Personal Protective Equipment (PPE) available when handling contaminants. Understand the different levels of PPE protection and specific applications where they are required. Review the safety procedures for handling hazardous materials in Indoor Air Quality (IAQ) situations. 2. Personal Protective Equipment (PPE) PPE: Clothing and equipment designed to protect personnel from sickness, injury, or death by creating a barrier against hazards encountered in IAQ work. PPE is essential for safety when handling contaminants such as gases, molds, and chemicals. 3. Levels of PPE Protection Minimum PPE: Used for small tasks or areas under 10 sq ft. Includes: Hand protection (gloves), Eye protection, and a Particle respirator (N-95). Limited PPE: Used for medium-size tasks or areas between 10 sq ft to 100 sq ft. Lecture 4 - (9/24/24) - Safety 1  Includes: Half-face or Full-face air-purifying respirator with HEPA filters, gloves, and protective clothing. Full PPE: Required for large-size tasks or areas over 100 sq ft. Includes: Powered air-purifying respirator (PAPR) or Self-contained breathing apparatus (SCBA), full-body suit, gloves, and foot protection. 4. Types of Contaminants and Required PPE Gases: Require respiratory protection. Molds: Can be inhaled, ingested, or transferred via skin contact, requiring respiratory protection, special clothing, hand, and foot protection. Chemicals: Can be inhaled or absorbed through the skin, requiring respiratory protection, gloves, foot, and eye protection. 5. Types of Respiratory Protection Disposable Dust Mask: Provides basic protection against dust and particles. Half-Face Respirator: Covers the nose and mouth, used with filter cartridges to protect against dust, fumes, and particulates. Full-Face Respirator: Provides comprehensive protection for the face, including the eyes, with filter cartridges to protect against a range of hazards. Powered Air-Purifying Respirator (PAPR): Uses a blower to pull air through filters, creating positive pressure to prevent unfiltered air from entering the mask. Self-Contained Breathing Apparatus (SCBA): Provides the highest level of respiratory protection with a pressurized air tank carried by the user, allowing use in oxygen-deficient environments or highly hazardous situations. 6. Special Clothing Disposable Clothing: Often used in medium and large IAQ projects to prevent contaminants from transferring to clothing or skin. Typically made from Lecture 4 - (9/24/24) - Safety 2  materials like Tyvek® and includes coverings for the head, feet, and body. Impervious Bodysuits: Provide full protection against hazardous fibers, gases, or chemicals. These are often required in full PPE situations. 7. Foot Protection Footwear: Includes disposable boots, shoe covers, and protective shoes. Duct tape is commonly used to seal the area between the bodysuit and footwear to prevent contaminants from entering. 8. Hand Protection Gloves: Different materials are required depending on the type of substance being handled: Neoprene, Nitrile, or PVC Gloves: Used when handling chemicals like chlorine bleach or strong cleaning solutions. Rubber Gloves: Used for soaps or detergents. 9. Eye Protection Goggles: Should fit tightly to prevent small particles or dust from entering the eyes. Ventless goggles are recommended for full protection. Full-Face Respirator Mask: Provides both eye and respiratory protection by covering the entire face. 10. Head Protection Hood or Bouffant Cap: Protects the head from contaminants like mold or dust. These are often part of the full-body protection in IAQ work. 11. OSHA Regulations OSHA Regulation 29 CFR 1910 Subpart I: Requires employers to provide proper training and equipment for PPE. Employees must be trained on using PPE, and equipment must be selected based on the types of hazards likely to be encountered. Lecture 4 - (9/24/24) - Safety 3  12. Bloodborne Pathogens OSHA Bloodborne Pathogens Regulation 29 CFR 1910.1030: Requires an Exposure Control Plan to protect employees who may come into contact with blood or other infectious materials. Employers must evaluate exposure risks and provide proper PPE such as bloodborne pathogen personal protection kits. 13. Respiratory Protection Training Fit Testing: Required for all employees using half-face, full-face, or powered air-purifying respirators. Special Training: Required for using SCBA, PAPR, and air-line respirators due to the complexity and level of protection these devices offer. 14. Summary PPE is critical for ensuring the safety of IAQ personnel working in hazardous environments. Different levels of PPE provide varying degrees of protection based on the task and exposure risks. Respiratory, eye, and hand protection are key components of PPE, and special clothing or bodysuits may be required for tasks involving chemicals or airborne hazards. Lecture 4 - (9/24/24) - Safety 4