- The filter is a non-woven fabric, which is not suitable for cleaning. The filter is placed inside the mask and does not contact to droplets. It is long-lasting and can be used multiple times.
- Filtration of flu virus H1N1, H3N2 / droplets / pollen, and provide allergy soothing. It is antibacterial and long-acting. Usage recommendation: If it is used every day, each can be used for at least 2-3 days. If it is used for half a day, the filter can be used for 4-5 days before replacing the new filter.
Size(inch)：4.7'' x 3.3''
Made in Taiwan
Keep yourself and others protected with our exclusively designed personal protective equipment (PPE).
Eco-Innovation with Built-In Compassion
All proceeds from your purchase of DA.AI Technology products will directly benefit the Buddhist Tzu Chi Foundation’s charitable efforts globally.
Shipping and Returns
Most orders are shipped within 3-7 business days after completed payment.
- We ship orders to the United States addresses only.
- Our standard Shipment can be either USPS first class or any other service that the shipping department considers most effective at the time of shipping the order.
- If the package(s) is returned to us due to an address error made by the customer or the customer refuses the package, the customer will be responsible for the shipping cost for the return of the package.
All purchases made on DA.AI have a 30-day no-questions-asked return period from the date of delivery. If 30 days have gone by, and the item is still under warranty, please contact our customer care staff regarding the warranty process for your item.
Late or missing refunds
It may take some time for banks or credit card companies to process refunds, so please do wait a few days for the refund to appear. If the refund does not appear as expected, do contact your bank or credit card company to check. If you’ve done all of the above and still have not received your refund, please contact us at firstname.lastname@example.org
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.