we recently moved into an apartment where the fire alarm is right next to my stove! EVERY time i use the thing even on very low heat the alarm goes off. when i blow out a candle the alarm goes off. It is attached to the wiring in the apartment and also connected to a huge bell alarm outside the building! sooo embarrassing. any suggestions?
Street bike helmets have a face shield. They have more internal padding. They are designed to be more aerodynamic at higher speeds. Venting is smaller, to keep from causing noise at speed. Dirt Bike helmets have a visor, but no shield. The internal padding is usually removeable for cleaning. Vents are huge for best airflow at slower speeds (and since the rider will be exerting themselves more). They are NOT fun to wear at high speeds. There are some helmets that are designed to work well for both applications. Arai and Shoei both have models that work very well for someone who rides a mixture of both. Both Streetbike and Dirtbike helmets are DOT and Snell approved. Snell approved helmets are required if you race (street or dirt).
most dirt bike helmets have an open face on the full face helmet, or a duckbill on them. They are just as good as the other, just different graphic's.
tricky step look on a search engine this could help
A heat detector uses a thermometer to measure temperature rise. A flame detector uses an ionic emitter to detect molecule-sized particles emitted by a smokeless flame. A smoke detector uses a photocell and light source to detect the light-blocking character of smoke. All three are important in detecting a fire, but most fire detectors now use the photoelectric method or a combination of photoelectric and ion emitter. The problem with the flame detector is that while it will detect a smokeless flame, it will not detect a flameless smoke, such as what is created by a smoldering fire. Smoldering fires are often recursors to flame, so the smoke detector will give earlier warning. Heat detectors do not provide an early warning, since the fire may be well underway before the sensor temp reaches the detection point.