B49HA High Absorbency Refill Packs

• Protects wooden instruments that are exposed to year-round extreme humidity of 60+% (Lower humidity? Choose B49 Standard Refills for wood instruments.)
• Automatically maintains constant RH between 40% and 60% for instruments in high humidity climates
• Prevents warping and mildew build-up
• Curbs humidity fluctuations that throw off an instrument's measured alignment and cause permanent damage (think going in and out of air-conditioned venues, traveling by air, performing outdoors, etc.)

HOW TO USE:

BEFORE USING BOVEDA:

• ALWAYS insert Boveda into a Boveda Holder before using in your instrument case. The holder acts as a liquid barrier if a packet is accidentally punctured while extending the life of your Boveda packets. The patented interior material allows water vapor to pass through to your instrument. The exterior is soft, like a polishing cloth, so it doesn’t scratch the finish.
• DO NOT mix B49HA and B49 or different Boveda RH levels  within the same instrument case. 
• DO NOT use other humidification products with Boveda in the same case because they will fight against each other and reduce the efficiency of Boveda.

1. Slip the Boveda pack into the pouch of its Boveda Holder. (DO NOT OPEN the Boveda itself.)
2. Place in the case anywhere that allows for airflow and prevents puncture when you close the case: - Under the neck or headstock - On the strings - Open area in the case
3. Close the case's lid. Always keep your case closed when using Boveda.

HOW MANY SIZE 8 TO USE:

• Boveda Double Holder: Refill with two (2) to four (4) B49HA Refill Packets
• Boveda Single Holder: Refill with one (1) to two (2) B49HA Refill Packets
• Directional Boveda Holder: Refill with one (1) B49HA Refill Packet

BASED ON THE INSTRUMENT THAT I PLAY, HOW MANY BOVEDA REFILL PACKS DO I NEED TO USE?

Use one (1) B49HA Refill Packet in a Boveda Holder for a(n):

• Clarinet
• Oboe
• Ukulele
• Viola
• Violin

Use two (2) B49HA Refill Packets in the Boveda Holder(s) for a(n):

• Banjo
• Bass clarinet
• Bassoon

Use four (4) B49HA Refill Packets in the Boveda Holder(s) for a(n):

• Cello
• Harp
• Small guitar
• Standard acoustic guitar or bass
• Standard electric guitar or bass
• Upright bass

PACKAGING:

4-Pack: Packaged in a resealable high-barrier heavy-duty plastic bag with a zip closure. Each Boveda is not individually overwrapped.   
12-Pack: Each Boveda is individually overwrapped.   
20-Pack Brick: Packaged in a heavy-duty plastic bag that is resealable using its attached tape enclosure. Each Boveda is not individually overwrapped.  

Unopened, Boveda can last up to 2 years.

LIFESPAN:

Replace Boveda 2-way humidity packs every three (3) months.

Achieves and maintains a constant relative humidity (RH) range between 40% and 60%, the industry standard for wooden instruments.

INGREDIENTS:

Food-grade salt, purified water, and a food-grade thickening agent sealed inside a leakproof membrane.

PRODUCT DIMENSIONS:

5.25"/13.34 cm x 3.5"/8.89 cm