how often do you need to replace hepa filter
1975101
You can clean the HEPA filter. This is what the Shark website states "There is a post-motor HEPA filter located on the bottom of the unit which should be cleaned approximately every 12 months. To remove this, you will need to fully recline the vacuum body to access the HEPA cartridge. You can also remove the floor nozzle by pressing the orange nozzle release button on the side of the unit. Next, turn the latch to the unlock symbol, remove the bottom cover and press the button to release the filter frame. To wash, put under tap water until the water runs clean, then let air dry completely for at least 24 hours. Once dry, replace the HEPA filter back into your vacuum and secure the cover on the bottom of the vacuum."
878833
The Fellowes filter comes with a HEPA + one carbon charcoal filter. The recommendation is to replace the HEPA filter every 12 months and a carbon filter every three months. So I bought 1 extra HEPA filter and 1 set of carbon filters (four in the box) to cover the next year or so. The Fellowes filter has indicators to let you know when to replace each filter.
1818982
The life of the Hepa filter is 12 month and the life of the pre-filter is 6 months.
1818984
This is the manufacturer's recommendation: "Before operating the air purifier, record the date of installation on the HEPA filter. Under normal conditions, the HEPA filter should be replaced annually, and the pre-filter should be replaced every 3 months." That is directly from the manual. I have had my air purifier for about 6 months and have only changed the pre-filter once. I vacuum if off about every 2 weeks. Your situation might be different depending on how must dust is being filtered.
1278076
Bag and filter replacement will depend on the user's lifestyle. If you have children and/or pets and you vacuum daily, you will probably need to replace your bag every couple weeks. No kids or pets means replacement at two months.
425409
The instructions say to clean the filters every 3 months and replace the hepa filter every 18 months
66371
It depends on how much stuff you have in the air (I have a lot!) but the recommendation is to replace the black filter every 3 months and the big white one annually.
2010073
The HEPA filter is washable. I soak it in a small container (or sink) with a squirt of dish washing liquid for 15-20 minutes, swishing occasionally then rinse well doing same method. It must be completely dry (overnight near fan or heat vent) before use. I own two HEPAs so one is always clean and dry. You should clean the HEPA filter about every 3-4 months depending on how frequently you vacuum and how dirty the jobs are.
1907590
The hepa filters do NOT last as long as they say! I must change mine every 3-4 months $$$$
66373
I change the black filters about every 3 months. The hepa filter about every year. But the hepa filter needs to be cleaned. I clean mine 3 times a year. use a soft brush and then by water. Do not use any soap, just water
2056094
The S8590 has only the HEPA filter and the dirt collection bag. Because I have had this only a few months, I cannot speak as to frequency of replacement, but the company indicates the HEPA will last about a year.
669868
According to the booklet, when to replace the HEPA filter depends on hours used, air quality, and location of the unit. In most cases the unit will need to be replaced annually, and it should be changed after the 'change filter' light comes on. For best performance change the carbon pre-filter every 3 months. It warns specifically: "Caution, do not wash and reuse the true HEPA filter or the carbon pre-filter as they will not work effectively." Having said that, I have vacuumed the carbon pre-filter with a vacuum cleaner attachment since it collects a huge amount of dust. I haven't needed to change the HEPA yet.
1670531
The HEPA filter only needs to be changed once a year or so. The bag does almost all of the work.
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.
46618
It takes three (3) each. The HEPA filter is the expensive one and I replace it about once a year, while the carbon filter is replaced every 3 months. When you replace the carbon filter you'll be able to inspect the HEPA filter. I have washed the carbon filters and re used them.Keith
1698068
Miele recommends changing the HEPA filter once a year. If the dust compartment and exhaust filter are changed regularly and not allowed to clog up, you might extend the life of the HEPA filter. I always worry about mold or other organic growth on filters left unchanged for too long. I intend to follow the manufacturer's recommendation of once a year.
589325
I habe not bought replacement filters yet, but I would contact the 800 number for your hepa filter. Or do amazon search with model number and "replacement filter."