A:AnswerWe recommend changing the filter every 6-12 months. When the filter needs to be changed, the FILTER LIFE button will flash. The filters are not washable.
A:AnswerI have ours centrally located in our apartment. I think that if you are closing doors off it would impact how well it worked. I just keep the room doors open and it has done an outstanding job of keeping the air quality good.
A:AnswerI've had my Shark 600 series for 3 days, and it never went off of 100%. I questioned this bc I have 3 cats and live off a gravel road. So after reading all I could about the Shark purifiers I tried putting it in the kitchen when I was cooking beacon. It was only a few minutes be for it went red. So I know it's working. Have you tried that?
A:AnswerYes, it will filter any small particles in the air. It will filter weed smoke by capturing the fine airborne particles in the filter. Some of these particles cause odor which can also be reduced. My daughter lit a candle the other day and I was surprised that our filter detected the extra particles in the air and filtered them. Particles that land and cling to surfaces will not be filtered so it won’t be enough to eliminate odors but will reduce them so it “helps” with weed smoke.
A:Answeri Have severe dog allergies and two dogs. One dog sleeps in my sons room and sheds badly even with Zyrtec I still can’t be in the room. I feel asleep in the room and was fine with the purifier and my little one no longer wakes up with sniffles
A:AnswerI perused the questions to seek out this same thing. There are two questions on this subject and Shark hasn't responded to either, although they have responded to other questions within the same time frame. I was very interested in this unit, but this leads me to believe I can't depend on it for helping with the mold issue in my place, which is imperative. For that reason I will need to choose something else as a non answer has to be taken as a negative answer.
A:AnswerIt states every 6-12 months, it also has a built in life timer for the filter that displays when the next change should occur. I believe each filter lasts 4200hrs
A:AnswerAfter installing a new filter, press and hold the FILTER LIFE button on the top control panel for 3 seconds to reset the filter timing system. The unit will beep when filter timing is properly reset.