Introduction
The Katadyn BeFree 1.0L Ultralight Collapsible Water Filter Bottle provides a convenient and reliable solution for filtering water during outdoor activities such as hiking, camping, and backpacking. This manual contains important information regarding the proper use, maintenance, and care of your BeFree water filter bottle to ensure optimal performance and longevity. Please read these instructions carefully before first use.
Product Overview and Components
The Katadyn BeFree system consists of a collapsible Hydrapak Soft-Flask and an integrated EZ-Clean Membrane filter.

Image Description: This diagram illustrates the key components of the Katadyn BeFree water filter bottle. It shows the EZ-Clean Membrane filter with its Stay Clean drink nozzle and 42mm opening, the collapsible Hydrapak Soft-Flask in its compressed state, and the bottle fully extended. Text highlights that the filter's pore size is 0.1 microns, the bottle is made of TPU and is PVC and BPA-free, and its ultralight design (63g / 2.3 oz) makes it suitable for portability.
- EZ-Clean Membrane Filter: Features 0.1 micron hollow fibers designed to remove bacteria (99.9999% Klebsiella terrigena) and protozoan cysts (99.9% Giardia and Cryptosporidium).
- Stay Clean Drink Nozzle: Protects against dirt and debris.
- Hydrapak Soft-Flask: A flexible, BPA-free, and PVC-free bottle that collapses for compact storage.
- Capacity: 1.0 Liter.
Setup and First Use
- Unpack: Remove the Katadyn BeFree filter bottle from its packaging.
- Rinse: Before first use, fill the bottle with clean water (tap water is suitable) and squeeze it through the filter to rinse out any manufacturing residue. Repeat this process a few times.
- Inspect: Check the bottle and filter for any signs of damage. Do not use if damaged.
Operating Instructions
Follow these steps to filter water using your Katadyn BeFree bottle:

Image Description: This image illustrates the three simple steps for safe hydration with the Katadyn BeFree. Step 1 shows a person finding a fresh water supply in a natural setting. Step 2 depicts screwing the filter cap onto the bottle. Step 3 shows a person drinking directly from the bottle by lightly squeezing it.
- Find a Water Source: Locate a fresh water source such as a stream, lake, or river.
- Fill the Bottle: Unscrew the filter cap and fill the collapsible bottle with untreated water. The wide 42mm opening facilitates easy filling.
- Attach Filter: Screw the EZ-Clean Membrane filter cap back onto the bottle securely.
- Drink: Open the drink nozzle and gently squeeze the bottle to force water through the filter and drink directly. The filter provides a flow rate of up to 2 liters per minute.
Important: Always filter water from natural sources. Do not use with saltwater or chemically contaminated water.

Image Description: A person is shown kneeling by a flowing river, filling their Katadyn BeFree water filter bottle. The natural environment emphasizes the product's use for outdoor hydration.
Cleaning and Maintenance
Regular cleaning ensures the longevity and effectiveness of your BeFree filter.

Image Description: This image demonstrates the easy cleaning process for the Katadyn BeFree. A person is holding the bottle under a small waterfall, shaking or swishing it to clean the EZ-Clean Membrane filter. The text highlights that it's easily washable and disinfectant friendly for long-term storage.
- EZ-Clean Membrane: To clean the filter, simply shake or swish the EZ-Clean Membrane filter in water. This dislodges trapped particles and restores flow rate. No backflushing or special tools are required.
- Bottle Cleaning: The Hydrapak Soft-Flask can be cleaned with mild soap and water. Ensure it is thoroughly rinsed.
- Disinfection: For long-term storage or thorough cleaning, the filter and bottle are disinfectant friendly. Follow manufacturer guidelines for appropriate disinfectants.
Storage
Proper storage is crucial for maintaining the filter's integrity.
- After cleaning, ensure the filter and bottle are completely dry before storing to prevent mold or mildew growth.
- Store the BeFree filter bottle in a cool, dry place, away from direct sunlight and extreme temperatures.
- Avoid storing the filter in freezing conditions if it contains any moisture, as this can damage the filter membrane.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Reduced flow rate | Filter membrane is clogged with sediment. | Perform EZ-Clean by shaking or swishing the filter in water. |
| Water tastes unusual | Residual taste from new materials or water source characteristics. | Rinse the bottle and filter thoroughly. If taste persists, consider a different water source. |
| Leakage from bottle | Cap not screwed on tightly, or damage to the bottle/seal. | Ensure the filter cap is securely tightened. Inspect the bottle for punctures or tears. If damaged, replace the bottle. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Katadyn |
| Model Name | 8018006 |
| Filter Type | 0.1 micron hollow fiber EZ-Clean Membrane |
| Removes | 99.9999% bacteria, 99.9% protozoan cysts |
| Capacity | 1.0 Liter |
| Flow Rate | Up to 2 Liters per minute |
| Filter Lifetime | Up to 1,000 liters (depending on water quality) |
| Weight | 2.24 ounces (63 grams) |
| Dimensions (LxWxH) | 4.25" x 3" x 10" |
| Material | TPU (Thermoplastic Polyurethane), BPA-free, PVC-free |

Image Description: A person is shown drinking from the Katadyn BeFree bottle in a mountainous outdoor setting. Overlaid text highlights key specifications: Water Capacity up to 1.0L, Flow Rate up to 2.0L per minute, and Replaceable Filter Lifetime up to 1,000L, emphasizing its fast and durable performance.
Warranty and Support
The Katadyn BeFree filter bottle comes with a manufacturer's warranty. For specific details regarding warranty coverage and duration, please refer to the documentation included with your product or visit the official Katadyn website.
For further assistance or to explore other Katadyn products, please visit the Katadyn Store.
Important Safety Information
- Do not filter water that is known to contain industrial pollutants, radioactive materials, or heavy metals.
- Avoid dropping the filter or subjecting it to hard impacts, as this can damage the delicate filter membrane.
- Always ensure the filter cap is securely fastened to prevent leakage and ensure proper filtration.
- The filter is designed for fresh water sources. Do not use with saltwater.
- Protect the filter from freezing temperatures when wet, as ice crystals can damage the membrane.




