??how often does the filter have to be changed?
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.
613920
Every 3 months is recommended but I've gone 4-6 without noticing a difference.
1147739
It depends on how much of the filter is covered. I change the filter before each time I use it.
1348362
It depends on how often you run the unit and how much dust/allergens it's filtering out of the air. If it is always running then generally the filter should be replaced every 6-8 months.
2146417
When the filter needs changing....yes!!! It's gross. And, the filters don't last long!
835407
Usually every 6 months or so depending on usage. The machine will tell you when the filter needs changing
1504500
[Sorry, I am having computer problems.] Re the filter. I guess it depends on the quality of your water. We are on a private well, and the water is very good. Our habit is to change the filters every 9 or 10 months. The plumber's rule of thumb at our house is to change things when the water starts to run slow - that could take a year. I'm too neurotic to wait that long! Lastly, there seems to be little water wasted in the process (maybe a small container's worth, about a quart). Best wishes, Lauren
282068
I change the filter for our pooch about once per month. Depends on how hard the water is where you live. If you use filtered water it should last much longer.
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.
1718245
Eventually the filter will need to be replaced. As long as you take care of it it last a long time.
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
1403284
I don't use mine all that much, but I haven't had to replace the filter yet. I do clean it after each use, but that's easy enough to do.
1802839
The filter can be changed either 6 months or a year, but you must remove the front panel and vacuum off any debris about every 2 months, depending on how dirty it gets will determine how often you have to do this.
1544113
The manufacture recommends replacing the filter every 6 months period. Personally, I replace the filter every 3 to 4 months. For your information, most water filter manufacturers including 3M recommends replacing filter every 3 months.
1220767
It depends on how much water you're running through the filter. I live in an RV full-time and change my filter every other month.
2068592
Hi. How old your filter? You have to change it ones per year.I did and I do not have any problem.
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.
547381
It depends on your use but I try to change once a year. I have gone much longer though and have not noticed any degradation in the taste of the water. The filters really make a difference.