Related to how often the bag is changed (use) how often does the filter need to be changed?
1128442
I've had my vacuum 1 1/2 years and I have changed it once. Some of the dust and dirt will come out if it is tapped on a hard surface. I do this each time I change the bag. We have 3 small indoor dogs. When I vacuumed the other day I noticed that dusty stale odor. Guess it's time to change it. But you should be able to see the dirt that won't shake out.
1128443
If you periodically take it out and knock it out on a brick, it probably only needs to be changed about every 100 bags.
1147739
It depends on how much of the filter is covered. I change the filter before each time I use it.
1966172
The Filter Queen Defender 4000 HEPA filter should be changed once a year under normal circumstances. The pre-filter that you wrap around the HEPA filter is to be changed every six months. You change the filters to maintain optimum performance and maintain the warranty.
1537443
Every 6. month's but make sure it's the correct filter because the one I. ppurchased in December was shipped with the wrong filter it blew dust out. replaced with right filter this is my second one. That's why I purchased this one, the last one lasted fir 10 years. It ran 24 hours 7days a week nonstop.
38510
The system manual recommends changing the pre and post filters every 6 months and the membrane every 1-2 years. I don't use a lot of water and my city water is very clear so I am planning to change all the elements every 5 years. Good luck
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.
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.
1873285
In my opinion the filter does get dirty fairly quickly...I try to use a brush and get most of the stuff off of it myself rather than replacing every couple months.
1403285
I haven't yet had to replace the filter. I don't use it that much. My filter is a permanent filter and I just empty it in the trash when I use it.
835407
Usually every 6 months or so depending on usage. The machine will tell you when the filter needs changing
2279326
The unit has a timer that reminds you to change the filter every 6 months. I changed the filter for the first time this month (I've only had my GermGuardian 6 months) but after I did I realized the filter wasn't all that dirty, probably could have easily been wiped off and would have lasted at least another 3 months. We have a large dog but live in Seattle where there's not a TON of dust in the air. We run it 24/7 on medium.
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.
1237672
filter doesnt need a change for very long time, it needs cleaning/with vaccum cleaner only. thats whats HEPA FILTER, REPLACEMENT filters also available in Amazon.com
190144
The instructions say change the filter every two months. I fill it with water every day generally.
2146417
When the filter needs changing....yes!!! It's gross. And, the filters don't last long!
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.
1266827
Check both filters. Maybe they are dirty. Might be a partial clog inside System somewhere. Check for partial clog where the bag is connected.