A fire extinguisher is not a gadget, where you simply aim and press a lever, whereupon the angry fire suffocated :-) For professional reasons I completed a basic training with a professional fire department, and think I can say that the "How to" success makes , and without this "How to" a fire extinguisher is largely useless. Therefore I can only recommend to deal with the issue before it really burns.
I have - except for practice - never used a fire extinguisher. Hopefully it stays that way, the actual capabilities of this device, I can not review so :-)
I use (and hopefully not just) the device in the household, so I am not bound to the various laws. The device is still loud Auslobung compliant to DIN EN 3, is included also a service sticker. The product may therefore be quite interesting actuarially and for commercial use.
Powder extinguishers are mE very little maintenance, which has a "wear out" can, the propellant gas pressure is due to micro leaks. This equipment has a pressure gauge, and is filled very generous with nitrogen according to this.
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