What are the key safety precautions I need to follow when using the OxyPure?

Never immerse the cord, plug, or any part in water; do not run the cord under carpeting or furniture; do not plug into an outlet used by other appliances; always set on a flat, stable surface with 2-3 feet of space from vents to walls; do not operate on its side, place objects on top, sit or stand on it; unplug before assembling, cleaning, or changing filters; and never operate without the filter installed. (Pages 4-5)