“My Shark Never Change air purifier 650 changes from 100 to 85-90 % when I enter our bedroom of 150SF w/ vaulted ceilings. I have 3 small dogs. Why does it not improve to 100% while we are in the room for an extended period of time.”
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When you enter the room, your NeverChange air purifier may detect particles you bring in, such as dust from clothing or skin particles, which can temporarily lower the air‑quality reading. This is completely normal and indicates that the purifier’s sensors are functioning correctly. The air quality should improve as the purifier continues filtering. If it does not, please contact our Shark Support team at 1‑855‑427‑5127, available Monday to Friday from 9 a.m. to 9 p.m. ET and Saturday from 9 a.m. to 6 p.m. ET for further assistance.
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