Accumulair Emerson MAF2 MoistAIR Humidifier Filter (Aftermarket) Emerson compatible MoistAIR replacement wick filter for models MA-0600, MA0800 and MA08000 Measures approximately 8" x 26" x 1". AntiMicrobial agent prevents surface growth and migration of mold, fungus, algae, and bacteria. Replace wick filter every 2 to 3 months Aftermarket filter; Save $5 when you buy 2 or more!