Baking soda is an effective fire reduction method. However, flour and baking powder are very dangerous around flames. Flour is flammable and it can also conduct electricity. The combination can cause serious injury from electrical shock and worsen the situation by adding fuel to the fire. Baking powder is also not an option as it's also highly flammable. 

Yes, a faulty or broken light switch can be a serious fire hazard. Malfunctioning switches, often due to loose connections, exposed wiring, or overheating, can cause sparking or arcing. If you hear a crackling, popping, or hissing sound when you use the switch, it indicates live electricity arcing inside, which is a significant hazard that can ignite nearby flammable materials. If you suspect your light switch is faulty, turn off the power to that circuit at the breaker and contact a qualified electrician to remedy the issue.

As with any smoking appliance, a smoking oven is a concerning fire risk. It also negatively impacts your indoor air quality, which can put vulnerable people at risk of breathing problems. A dirty oven can catch fire if you don’t stay on top of regular maintenance, so remember to check your oven for signs that it’s time for a cleaning and remove buildup every three months to stay on the safe side.

Yes, professionals install sprinkler systems for enhanced fire suppression.