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This is my second dehumidifier from Novita. I live at a super humid area surrounded by forest reserve and have been facing massive mold outbreak since I moved in. The first Novita (PuriDry™ 2-In-1 Dehumidifier ND2000 with HEPA Air Purification) is effective and cost efficient - however it's not enough to cover my entire living room as I'm still having a little issue with mold/mildew infestation occasionally. So I've decided to get a 2nd one and ND838 fits the bill because it covers a wider area and it can auto shutdown whenever it achieves a certain lvl of humidity, which the PuriDry is not able to as the purification continues to run even if the dehumidifier stops (which is problematic when I'm away traveling for a period of time). So now the PuriDry is placed in my bedroom instead. All in all, I'm happy with this purchase and hopefully I'll STOP facing mold attacks!!!!!!