Walmart offers the Pureguardian 10-Hour Ultrasonic Humidifier in Pink, model no. H900, for $18.88. Opt for in-store pickup to avoid the $4.97 shipping charge. That's tied with our mention from a week ago and the lowest price we could find now by $8. It features quiet operation and low and high cool mist settings.

A close price: Amazon has it in Pink or Blue for $19.99 with free shipping for Prime members,