A:AnswerA)The Hepa filter is recommended to be replaced every 2yrs. The run-time varies depending on the size of the room. Once the purifier detects the air is clean the “Clean sign will display green” on the unit.
A:AnswerThank you for your recent inquiry regarding the FPA60UW and cigarette smoke and odor. We are happy to help. This unit does remove cigarette smoke and odor from the air. It features both a HEPA filter, which would remove the cigarette smoke, and a deodorizing pre filter which would remove the odor from the smoke. If we can offer any further assistance please email your contact information and the best time to reach you to [email protected] we will have a Sharp Adviser contact you back by phone to assist you further.
A:AnswerThank you for your interest in the FP-A60U Sharp air purifier. It is recommended that you change the HEPA filter at least every 2 years. It is recommended that you change the deodorizing pre filter about every six months. The times can vary depending on usage, room environment and location. The filters should be checked regularly and replaced as needed.
A:AnswerThere is a more expensive unit that covers more square foot but after much research I find it difficult to justify as this works exceptionally well and is a good value at the price.
A:AnswerYou can buy them at BestBuy
http://www.bestbuy.com/site/sharp-hepa-filter-for-select-sharp-air-purifiers-white/8924303.p?id=1218951943193&skuId=8924303&st=FPA60UW&cp=1&lp=2