Tengen is a local registered Singapore company. However, our factory is located in China. 

5” x 8” (13x20cm) is capable to store up to 10pcs of facemask. You may choose size 6”x9” (15x23cm) zip lock bag instead if you wish to store more than 10pcs/bag.

50 microns, 0.05mm.

All measurement stated are excluding the flap. 

Yes, customization service is available for all types of products with a minimum order quantity. Contact us for more information.

If the order is placed before 12pm on normal working days, we will process it on the same day. Orders placed after 12pm will be process the next day.
It usually takes 4~5days for your order to arrive at your doorstep.
 

Yes. You may collect the order yourself from our warehouse. 

Address: 48 Toh Guan Road East, #06-108 Enterprise Hub, Singapore 608586.

Our warehouse is open during weekdays within 12pm to 4.30pm. Do update us before you come down to collect the order.
 

If you receive a faulty product, kindly contact our customer service representative for return and refund.