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More than .6 cc’s of Humigel crystals will reduce the ability of the humidifier to function. When there are too many crystals, the water stays suspended in the crystals, and will not evaporate through the fabric of the humidifier, and cannot humidify your instrument. After initially filling your humidifier with distilled water wait 10 minutes. When you look into the humidifier, it should look like clear small curd cottage cheese. If it doesn’t look this way, and you have standing water, you need to get a OH-4 Humigel™ Replacement Kit and replace the crystals. Each kit holds 6-8 refills. As long as you reseal the small zip lock bag inside the kit and leave the desiccant bag in place, the kit will last a long time. Without resealing and the desiccant bag, the crystals cake up with water absorbed from the air. • MFSKU OH-4 • UPC 898775001045
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🇺🇸 Ship from USA · On Agora since 2026
$10.95