The part that fixes the tester cracks and the tester plumps. The valve closes depending on the angle of the mask. I think that it is very good because there is no problem with the ability of dust and comfort.
I used nonwoven fabric masks until now, but I had some anxiety. This mask is also soft on the face, without breathing. If you do not mind about size and weight, this mask is recommended. The unit cost of the filter is also cheap and it is saved.
How to Buy (Negara pengiriman : Malaysia, Singapura, Thailand, and more)
Semua produk tawaran MonotaRO Singapura tertakluk pada undang-undang, peraturan, dan standard pensijilan tempatan Jepun. Sila pastikan ia mematuhi atau tidak mematuhi keperluan negara anda dan/atau organisasi antarabangsa, termasuk tetapi tidak terhad pada, Pensijilan UL, sistem Sijil Wajib Halal, dan Halal.
MonotaRO Co.,Ltd. Hyogo Public Safety Commission No.631330800020