Cirrus SR22 Pilot Operating Handbook page 214

Section 7
Airplane Description
Halon gas used in the fire extinguisher can be toxic, especially
in a closed area. After discharging fire extinguisher, ventilate
cabin by opening air vents and unlatching door. Close vents
and door after fumes clear.
The extinguisher must be visually inspected before each flight to
assure that it is available, charged, and operable. The preflight
inspection consists of ensuring that the nozzle is unobstructed, the pin
has not been pulled, and the canister has not been damaged.
Additionally, the unit should weigh approximately 1.5 lb (0.7 kg). For
preflight, charge can be determined by 'hefting' the unit.
7-40
• WARNING •
Cirrus Design
SR22
P/N 13772-001
Revision A7