How often to change?
2000404
When the lights comes on to change it, you can simply clean out the filters yourself then reset the light. When the filters get too bad or if you don't want to deal with all that, you can change them but they are expensive. I change about 6-9 months or when the filter is really bad.
2000405
How often to change the filter is depended on the air quality in your house/room and how often the filter is on. You can tell by looking at the paper side of the filter. When the filter is getting "dark" grayish black color, the filter is near end of its life. Some people change filter every three, six, or nine months. That could be wasteful. I always inspect the filter and then change it as needed.
2000406
Depends on how often you run the machine...I run mine about 12 hours per day and I change the filters about every 18 months.
2000407
On my model, it has lights to let you know. Mine has been going for a year and still no change is needed.
502426
There is no definitive way to decide when your oil needs changing. Generally...every 7-10 uses. I refrigerate my oil (peanut), and depending on the visible "cloudiness" of the oil usually change it out every 8-10 uses.
2272956
I change it once a month. I have 3 cats and 1 dog. Fill up the tank every other day.
1053013
I would say about every 2-3 months. It probobly matter where you live as well. We are in a very dry clothes mate and I think our lack of humidity shortens its life some.
1940086
We recommend changing the filter every 6 to 8 months. However, the filter life will depend upon the environment in which it is used.
1467691
I think every 30 days is what is recommended; however, I change them every three months throughout the year.
1039773
You can change it as many times as you want. Just don't lose the little metal insert that comes with it. That is what you use to change to combination.
1790843
I have to change them about every 2 weeks. One of of my dogs is a husky mix and the other is a lab. I also have 3 kids.
270596
In the Instructions it says when to change, I think once a year under normal use.
1116733
Depends on conditions how well the safe seals and how often your in it, my guess would be 2 every six months. I use two in my toolboxes and change them every six months to a year depending on environmental conditions.
2095672
It depends on how many people you have in your house. If you have a full family of 4 or 5 or more, once a year. We have 2, I replace every other year.
1940085
We change ours every 3 months (90 days) - We have a thing set up with Amazon to send us a filter quarterly, we have an extra on hand so after I use the one I have a new one waiting. Ours has a dial on top to tell me when to change (in case I forget)
1027490
The manual says to change the batteries at least once a year as a good safety measure, or at the same time as you change your clocks for daylight saving time. The alarm has a simple way to test it, and the manual recommends doing so once a week.
1579139
The machine we use alerts us when it needs to be changed which is every two to three months. Hope that helps.
2195242
I change mine every 6 months. I have pets. You may be able to go longer if you don't have pets.
31866
you know when to change it -- you will suddenly stop hearing, even with a good battery. frequency varies by the person. for me, it is almost the same frequency as the need for battery replacement -- once per week.
274842
Hi, I just started to use it. I'll tell you how long it'll take to change it, when I change it. Take care