We have been using it for several decades. I use my device 24 hours a day, 7 days a week and change the filters once a year. I've found this to work great: I installed two (2) HEPA activated carbon filters instead of one (1) as per the instructions. Every two months I take out the HEPA filter and remove the two activated carbon filters. HEPA I taps on a flat surface and knocks off fine dust. I first shake out the two carbon filters outside (a lot of hair and dust comes off). Then I take the activated carbon filters to the sink and wash them thoroughly. You lose some of the fine charcoal, but a lot of dirt is washed out. Squeeze out the water and reattach to the HEPA filter, pop back into the block and you're done. This double activated carbon filter catches so much dirt at close range that it extends the life of the paper HEPA filter by 2 times. or 3x to keep the large amount of dust trapped in the activated carbon filters away from the HEPA paper filter which could clog it. Walter from Arizona
Universal Dryer Thermal Cut-Off Kit With Thermistor And Fuse Replacement - Compatible With Kenmore, Samsung, Whirlpool, KitchenAid And More
24 Review
Room temperature and humidity sensor Aqara Temperature and Humidity Sensor white CN
26 Review
Keep Your Refrigerator Fresh With ICEPURE RPWF Water Filter - 4 Pack Replacement For GE RPWF, RWF1063 And More
32 Review
200-Count Disposable Coffee Filters With Lid For Keurig 2.0 & 1.0 Compatible Reusable Single Serve Pods - White
28 Review
Transform Your Refrigerator'S Drinking Water With WaterSentinel WSG-4 GE RPWF Filter Replacement
10 Review
Clear Refrigerator Egg Holder For 18 Eggs, Ambergron Egg Container For Fridge, Kitchen Storage Solution
15 Review
ICEPURE 5231JA2006A Replacement For LG LT600P, KENMORE 9990, 5231JA2006B, KENMORECLEAR 46-9990, 5231JA2006A-S, WFC2001, LSC27931ST, LFX25960ST, FML-2,RWF1000A Refrigerator Water Filter 3PACK
16 Review
56 Egg Storage Bin Set - 4 Stackable Bins W/ Handle & Lid, BPA Free Polyethylene For Fridge, Freezer & Pantry Organization
11 Review