Does smoke detectors have a usage life ?
487156
not a lot of people know this but smoke detectors are one of the biggest scams ever! I had one in my old house, one day it started beeping and beeping like their was a fire every so often. And then it stopped. Three months later a grease fire destroyed my kitchen and that good for nothing smoke alarm didn't even go off.
1182942
Not long if you don't smoke.
413217
Definitely. The police use air analyzers to detect when they have been in too long ad can start suffering from exposure. Your friend needs to be in a sealed suit with external oxygen when cleaning in that environment.
1090265
in industries what i think they know the life time of the material being used for the heating purpose.\nafter that time material any how gives less efficiency due to oxidation and erosion.\nso any time if they want to check,they must be measuring time delay due to bad performance of heating
447939
First of all, "smokers" are not a protected class, so discrimination is not an issue.  \n\nAnd my comment would be, how would they know you smoke?  They can't keep you from smoking outside.  As long as you do not smoke in the house.\n\nHowever, I will mention that it may be an insurance issue.  When you get homeowners insurance, they ask you if you smoke.  I guess because you are more likely to burn down your house if you do?  I dunno.  Anyway, so it may cost a lot more in insurance if the property owner rents to people who smoke in the house.\n\nOr they may just be being diffcult, but I figured I would propose a possible legit reason.
209057
It depends on the size and type.\n\nhttp://www.hanford.gov/fire/safety/extingrs.htm
932827
This isn't the first time someone has asked this.\n\nI see a lot of people tackled this question and there are alot of good answers! It is true that if the power goes out you could get trapped, and yes smoke can enter the elevator chamber.  Most newer elevators do have a recall feature if smoke is detected.  No question the best policy is to always use the stairs!\n\nBasically, the problem with older elevators is they have a nasty habit of going to the floor with the fire. This is because the heat from the fire has been known to short out the call system wiring and the elevator controller interprets it the same as someone hitting the button. So if you are riding in the elevator, the dang thing may deliver you right to the floor with the fire! \n\nNewer elevators are usually connected to the building's fire alarm system and/or a series of smoke detectors outside the elevator shaft. In the event the smoke detectors near any of the elevator doors or in the machine rooms trip, the system overrides all call buttons and immediately takes the car to a pre-designated floor (generally the lowest level unless that's the floor the fire was detected on.) The cars can then only be used until the alarm system is reset or the system is overridden with a key. (Firefigters can use this feature. When in override mode, the controller only responds to manual controls from inside the car.)\n\nI hope this answers your question.
279729
no,not as long as you are not installing.
158897
that is very relative. I know a person who's lived for over 90 years smoking 2 packs of "PielRoja" ("redskin", unfiltered cheap colombian ciggies) since age 24. and there's plenty of factors: if you don't have the precise protooncogene, you could never develop cancer even smoking 2 packs a day. \n\nthen again, people can live with an emphysema for long, stuck to an o2 tank all their lives. you could develop Chronic Obstructive Pulmonary Disease (I think this is the exact translation), live with an annoying bronchitis for decades. ruin your skin and teeth and get to age 80 looking like shit.\n\nwhat's the point? it's not a matter of quantity of life but quality of life.\n\nanyway, from an unorthodox point of view (having discussed this with a few teachers of mine), they'd say a ciggie a day is no big deal (but if you have the protooncogene I won't be responsible).
268578
It all depends on what kind of purifier you bought. The red light on the ones I sell always stay on as an indication of purifying the air. The check for the filters is usually green or blue when the filters are blue and then turns red when you need to change them or clean them. Or the check light will come on when the filters are in need of a change or cleaning.
97691
It depends on how close to the smoke you are and how long you are exposed. If you breath in enough of the fumes, it will show up.
141611
between 1 and 30 days depending on how frequently its smoked.
1097551
At work we just got motion sensitive switches.  If there isn't any movement for so long, the lights turn themselves off.  Saves a bunch on electricity.  Of course they automatically turn themselves back on when we walk through.
486976
They are very helpful, but it depends on which brand. They are an investmtent and a $30 unit from wal-mart will only be a waste of money. I advise you to do research on different types and find which is best for you. Some are better for reducing smoke odors and other odors. Others are better for reducing household allergens such as dust mites, pollen, pet dander, etc. The type that you buy really depends on the problem you are trying to solve by using the purifier. They are great as long as you have the right one.
687717
definately. the fumes and stuff from the smoke soaked materials can exacerbate ashtma.
901433
Never throw water on an electrical appliance!!!\n\nThe smoke you smell is probably a belt burning but could be the motor.  If it isn't an expensive vacuum, you're probably better off just trashing it and buying a new one.  If it cost you more than $200, it might be worth taking to a repair shop for service.  You also might want to check if it is under warranty where you bought it.
614814
ABout 100 to 150 days , but if it is seen by the homeowner it is like 3 to five minutes depending on the type.