How to Use
Foti Filters™ are easy to use. You simply add water to the dry filter mask as follows:
- Remove the masks from the plastic package. This plastic container becomes a cup-shaped holder when it is opened. Hold one of the masks in or over the plastic container.
- Add clean water slowly to the center of the foam reservoir or disc. (Please see the photo below.) The easiest method is to use a small bottle of water.
- Add a few drops at a time until the reservoir is saturated. Allow the filter paper around the reservoir to become wet. It takes about 2-3 tsp. Add more water to the reservoir as needed. This will be governed by the dryness of your external atmosphere.
- Dry the plastic container so that it can be used to store the unused mask.
- For use over several hours or in extremely dry enviornments, you may want to re-moisten the filter mask.
Frequently Asked Questions

Can they be reused?
It is not recommended. Accumulated particles and microorganisms could become a source of contamination after the mask is allowed to dry.What type of water can be used?
Distilled water or any pure, bottled water.Can you use scented water?
Yes, so long as the scent is safe to breathe.Where can I buy the Foti Filter™?
You may purchase the Foti Filters on our web site using PayPal. It is very secure shopping, and can accept your Visa, MasterCard, Discover, and American Express credit cards. Product delivery is handled by Jim Foti of the Tonga Trading Company. Jim is Dr. Foti’s son, the owner of Tonga Trading Company, and a well-known outrigger canoe paddler in Hawaii.Do you sell the Foti Filter™ wholesale?
Yes we do. If you are a business and would like to purchase quantities for resale or bulk distribution, please contact us.Can I return the filters for a refund?
We are sorry, but returns are not accepted. As the filter is a personal care item, we cannot accept returns. Please purchase the amount you plan to use; you can always purchase more at a later date.Please click here to purchase the Foti Filter™.