4 Masks for US$32

(26 cents per use with 30 washes)

6 Masks for US$45

(25 cents per use with 30 washes)

10 Masks for US$70

(23 cents per use with 30 washes)

20 Masks for US$130

(21 cents per use with 30 washes)

50 Masks for US$300

(20 cents per use with 30 washes)

100 Masks for US$500

(16 cents per use with 30 washes)