How often do I have to change the filter?
1463459
It depends, I have 4 cats, so with all of that fur and dander, I change my filter every7 weeks or so. If you vacuum frequently that helps the filter last longer. When the filter starts moving from white to gray, it's time to dump it.
1463460
There's not one answer to this question. It depends on the environment you live in and possibly the allergy sensitivities of people in the home. It's good to check them every month or so. We live inside a hardwood forest and it seems to me, we have to change ours about every 3 months or so. You can tell when they need changing, just by looking at them. If your environment has a lot of dust or other particles in it, you may need to change it every month. On the other hand, you might be able to go six months without changing it. Hope that helps some.
753296
I replace the filter about every 9-10 months. It runs 24/7 on fan speed -2 except for those weeks when the weather is nice and we open the house. I wash the foam pre- filter every month
1077805
I replace mine once a month. You could probably go a bit longer if you don't have hard water and if you clean the humidifier once a week as recommended. I do a thorough clean only once a month and replace the filter at that time since it gets all gunky from both the dust it sucks in and the hard water build-up.
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.
1921210
I believe they suggest every 3-4 months...I purchased the filters online at amazon actually.
1718245
Eventually the filter will need to be replaced. As long as you take care of it it last a long time.
1045508
The manufacturer will always lure you to change you filter media regularly/monthly to insure good business. What i do is clean each one 2-3 weeks depending on how dirty the filter is. I clean it under high pressured water. Don't change it unless it no longer capable of filtering. You can see/ base it in your water clarity.
1935922
Membrane every 2 years. Filters need to be changed more often--according to the amount of use.
1035400
I only needed to replace mine at most, once a month. I would say it really depends on if you leave the filter on when you feed your fish. By turning it off during feeding, I could sometimes go 2-3 months before changing 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.
194024
I would think changing it would not be an issue for quite a while. I only use it once per month. The current filter should stay good for a long time at that usage rate. When the time comes, I will rinse the filter and put back in for as long as I can.
1981563
I'm not sure what the recommendations are for changing this filter, but when we notice that our water is tasting funny, we change the filter (about every 12 months). There are probably a lot of variables at play, such as the minerals in your water, chemicals, etc.
2142961
The filters are usually not white when I change them. But I change them about once a year, based on amount of use.
985491
Depending on the amount of use, your filters should last 3-6 months easily. You can greatly extend the life of the filter by using a small hand vacuum or dust blower to clean the filter regularly.
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.
66374
Prefilter: Directions say every 90 days. I run my filter 24/7 and need to change the pre-filter every 60 days. HEPA filter is supposed to last 1 year. I change mine more often due to severe allergies and chemical/fragrance sensitivities; mostly due to scent.
1403283
I've had mine for two years & haven't replaced the filter yet. So, I don't know. It depends on how much you use it I guess.