Stretto® Humidifier for Violin or Viola

Stretto - Best Humidifier System

I recently purchased a new Bam violin case and the store recommended a Bovida humidifier bag instead of the Stretto system which I have always used. After 4 weeks in dry November northeast conditions with the Bovida bag, the humidity in my new case was reading at a low 42%. I understand the acceptable humidity range is 40% to 60%. I switched out the Bovida for the Stretto system and now the humidity is ranging at an average of 53%.