Are you working in an office in Japan that doesn’t have a water dispenser?
Worried about drinking tap water every day?
Buying bottled water is costly and creates plastic waste. Fortunately, there’s a smarter solution: water bottles with built-in filters that remove PFAS and other harmful substances – just carry an empty one to the office, and fill it with tap water wherever you are!
In this article, we’ll explain the risks of PFAS (forever chemicals) and introduce 5 water filter bottles that are perfect for office use in Japan.
What is PFAS (PFOS and PFOA) and Why Should You Worry?
PFAS (Per- and Polyfluoroalkyl Substances) are synthetic chemicals used in products like non-stick cookware, waterproof clothing, and food packaging. They’re known as “forever chemicals” because they don’t easily break down in nature or the human body.
Within this group of chemicals, PFOS (Perfluorooctanesulfonic acid) and PFOA (Perfluorooctanoic acid) are two of the most well-known and widely studied compounds. Both have been linked to health risks such as cancer, hormone disruption, and immune system effects.
While PFOS was commonly used in stain-resistant fabrics and firefighting foams, PFOA was often used in the manufacturing of Teflon. Although many countries have started phasing out PFOS and PFOA due to their toxicity, they are still detected in the environment and water sources worldwide.
Health risks linked to PFAS exposure
- Increased cancer risk
- Thyroid hormone disruption
- Developmental problems in unborn babies
- Elevated cholesterol levels
The U.S. Environmental Protection Agency (EPA) has recognized PFAS as a serious threat and has lowered safe limits in drinking water.
🔗 More information from the U.S. EPA (English)
Recent Japanese media reports on ongoing detection of PFAS
Recent reports in Japanese media and government sources reveal widespread PFAS contamination—especially PFOS and PFOA—in drinking water, rivers, groundwater, and soil.
In a 2024 survey, the Japanese government has detected significant levels PFAS in approximately 20% of tap water samples.
No Water Dispenser at Work? Try These 5 PFAS-Filtering Bottles
If you’re concerned about PFAS contamination in your office tap water, consider switching to a filter bottle specifically tested for PFOS and PFOA removal. This can help you save money on buying bottled water from vending machines every day.
It’s important to note that not all filter bottles are designed to remove PFAS. Many models intended for outdoor use are only effective against dirt and microbes, and some have not been tested for removing newer contaminants like PFAS.
Below, we’ve listed three filter bottle models that have been independently tested for PFAS removal: good choices for cleaner, safer drinking water at the office.
BRITA Fill & Go Active Bottle
※ To view Rakuten pages in English, please click on the kebab icon (three dotted icon) on the top right corner of your Chrome window, and select “Translate.”
Characteristics:
- Trusted German brand, tried an tested in 69 countries
- Tested for PFOS and PFOA removal
- Removes chlorine and unpleasant odors
- Sporty, ergonomic design
Filter Replacement Frequency: Once a month
ポチップ
Gaia Light Bottle
※ To view Rakuten pages in English, please click on the kebab icon (three dotted icon) on the top right corner of your Chrome window, and select “Translate.”
Characteristics
- Tested for PFOS and PFOA removal
- Embalance coating with antibacterial properties
- Bio-activated ceramic balls and terahertz stone embedded in the filter
- Lightweight! Only 150g when carried empty
Filter Replacement Frequency: Once every 3 months
ポチップ
Kuripiere PFAS Removal Pot
If you have sufficient space on your desk, you should probably consider Kuripiere, offered by Kuritac.
※ To view Rakuten pages in English, please click on the kebab icon (three dotted icon) on the top right corner of your Chrome window, and select “Translate.”
Characteristics
- Tested for PFOS and PFOA removal
- One cartridge can filter 300L of tap water (Saves you from buying 600 bottles of 500mL water)
- Uses activated charcoal made in Japan
Filter Replacement Frequency: Once every 3 months
ポチップ
Summary: Stay Hydrated and Safe at Work in Japan
If your workplace doesn’t offer a water dispenser, you don’t have to rely on bottled water!
A PFAS-filtering bottle is an economical and sustainable alternative. However, not all filter bottles have been tested for PFOS and PFOA bottles, so please pick one carefully!
