how often should I change filters?
1485211
The guidelines on my Carrier heat pump system recommended changing the filter once a year if you keep your fan on constantly, and once every 2 years if your fan only turns on when the system is on. Since I only run my fan constantly on very hot days when the A/C is on, and don't run it constantly all the rest of the time, I have been changing my Aprilaire filter every 18 months, and that interval has been for my usage pattern.
1485212
Depends where you are. Here, we need to change at least every six months, and every four is better, but we have serious dust problems. Every 6 months is good enough most everywhere else.
1485213
I replace mine every year - might be able to wait a little longer, but no reason to risk efficiency.
1485214
I replace mine once a year. A lot depends on how clean your house is and if you have pets that shed hair. I have two cats.
1485215
When my Aprilaire unit was first installed, I was instructed to change the filter every 6 months. However, the last few times my furnace/air conditioner was serviced, the serviceman suggest that it be changed only once a year. As noted on previous posts, a lot depends on your location, i.e. if you live in a dusty area or a place that has a lot of air pollution, and whether or not you have a lot of pets. The best thing to do, I suppose, is to check the filter every six months. It will be easy to tell whether the filter needs to be changed. I also keep an extra filter on hand for future use. I hope this helps. When my Aprilaire unit was first installed, I was instructed to change the filter every 6 months. However, the last few times my furnace/air conditioner was serviced, the serviceman suggest that it be changed only once a year. As noted on previous posts, a lot depends on your location, i.e. if you live in a dusty area or a place that has a lot of air pollution, and whether or not you have a lot of pets. The best thing to do, I suppose, is to check the filter every six months. It will be easy to tell whether the filter needs to be changed. I also keep an extra filter on hand for future use.... » Read More When my Aprilaire unit was first installed, I was instructed to change the filter every 6 months. However, the last few times my furnace/air conditioner was serviced, the serviceman suggest that it be changed only once a year. As noted on previous posts, a lot depends on your location, i.e. if you live in a dusty area or a place that has a lot of air pollution, and whether or not you have a lot of pets. The best thing to do, I suppose, is to check the filter every six months. It will be easy to tell whether the filter needs to be changed. I also keep an extra filter on hand for future use. I hope this helps. « Show Less
1485216
This filter is intended to be changed every 12 to 24 months. It is recommended that the average household change it every 12 months for optimal performance and 18 months for optimal value.
1856740
I returned my alen A350 after about a week of use because of the high noise level. I recall reading that filter change varies according to use and conditions. Every 6 to 12 months is the norm.
1177110
I have gotten away with not changing it for about two months. BUT that required me to keep the unit dust - free and clean on the inside as well s the outside. It also depends on how often you' re using it. If you use it constantly. then you will have to plan on changing the filter every month for sure.
2195240
Printed on the edge of the filter: "Change every 6 to 12 months - more often if the filter appears dirty." My HVAC person recommended every 6 months.
1049042
On the old models I changed every 30 days. This one, with filter A, says it will last 3-6 months. I haven't had this one long enough to know for sure.
487325
The directions for the platinum model say the filter should be changed every two to four weeks. It also says you can thoroughly rinse the filter and put it back in. I've had no problems with doing that.
613919
It is hard to say. The old filters used to have an indicator which was a no-brainer. I usually change mine every few (3) months or so (when I remember). If you notice the water filters more slowly, I would suggest to change it.
1651051
Our shower is used about 2-3 times daily. Our area has extremely hard water so our filters only last about 3-4 months. I change them when my skin starts to dry out (severe eczema,) or it smells heavily of chlorine.
1064808
I've owned a unit about two years. I replaced the filter after year 1 and just replaced it the second time. The unit seemed to work OK, but the filter does get a little "grungy". I'd say replace at least once a year (I only run the unit during the winter and early Spring months-November to April)
793116
I would say it depends on the conditions at your home. We live up in the mountains where it is very dusty, so we check it at least once a month. We'll change it based on the amount of dust on the filter paper. We can generally go a couple of months before having to change it out.
1312354
We change ours yearly (recommended for a household of 4), but really depends on water usage. I have been told, if your water pressure drops drastically, that is another sign that you need to change filters.
331616
Hello Shelley, I often change the filters around 6 month and 1 year, this depends for the PH of water, I measure the PH if this drop down about 6, I change the filter.
440208
Even though it says every 6 months, we don't use it that often so what we do is change the the red and blue filters every 12 months and the purple filter every 24 months (yes 2 years). So far it has not degraded our water quality nor taste. I wouldn't push it more than that though. If you really want to be safe stick with what the manufacturer recommends, every 6 months for the red and blue filters and every year for the purple.
526255
I believe it depends on how many fish you have and how quickly the tank get dirty. Personally i just change it once a month to be safe.I have a 55 gallon tank with some tetras, two angel fish, two pelcos, and a albino corry(Total: 9 fish). I only change once a month, even when i had 13 fish i still changed the filter once a month.I never had any issues with the fish and my water always passed the weekly tests.
1857862
Changing the filter depends on how often you use the coffee machine. We change ours about once every 18-24 months because we do not use the machine very much (about 2 - 3 times a month). You could also gauge the changing time by how the coffee tastes. If you make it the same every time and you notice it tastes a little different, you probably need to change the filter.
190144
The instructions say change the filter every two months. I fill it with water every day generally.
2039175
There is a pre-filter that you have to change. There is an indicator to tell you when to change filters. How often depends on what setting you run. I run mine at medium 24/7, high for 1 hour after vacuuming. I change filters about every1 1/2 - 2 months. They're not expensive.