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Aprilaire Model 400M Humidifier is a drainless humidifier that maximizes humidity control with minimal water use. Perfect for homes with septic systems.

Aprilaire 400M

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Aprilaire 400M Features

  • Minimal water usage
  • No drain required
  • No standing water
  • Delivers optimum levels of humidity control with the Automatic Digital Humidifier Control. You never have to monitor your settings or wait until you feel uncomfortable.
  • Provides vital service, temperature and relative humidity indicators in manual mode as well.
  • Humidifies tightly constructed homes up to 4,000 square foot in size.
  • Has an evaporation capacity of 0.70 gallons per hour.

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