# OPS-5: Environmental Controls

Status: not started

Domain:
- 4.0 Operational Procedures

Objective alignment:
- 4.5 Environmental controls

## What You Need To Know

Environmental controls protect equipment and people.

Key topics:
- MSDS or SDS documentation
- Battery disposal
- Toner disposal
- Device and asset disposal
- Temperature
- Humidity
- Ventilation
- Equipment placement
- Dust cleanup
- Compressed air and vacuums
- UPS
- Surge suppressors
- Surges, brownouts, and blackouts

## Memory Trick

Use **P-H-D-P**:

- **P**ower
- **H**eat and humidity
- **D**ust
- **P**roper disposal

Shortcut:
- **Bad power, heat, dust, or disposal can turn a simple support issue into a safety issue.**

## Exam Clues

- Use SDS/MSDS for chemical and material safety guidance.
- Toner and batteries require proper disposal or recycling.
- UPS protects against short outages and gives time for safe shutdown.
- Surge suppressors protect against voltage spikes.
- Brownouts are low-voltage events; blackouts are power loss.