Detail specification of dust mask:
Carbon active anti dust face mask
1st layer : PP spunbond outer layer
1) Cup shape and folded flat
Free samples can be finished in 2 days
Cup shape (without valve)
Do dust mask work?
The masks are defined as particle filtering face masks and fine dust respirators. Particle filtering face masks provide protection against particles, but not gases or vapours. ... In order to keep breathing resistance low, the filter masks must be permeable to air whilst also preventing particles from pervading.
When should dust masks be worn?
Dust masks just don't provide a good face seal and they protect about as well as nose hair, which is to say not that well. Replace them when they look dirty or after about 8 hours of wear. Honestly they're not doing much anyway, so it won't matter.
How to request sample merchandise?
After confirming your desired product, you can request samples. We invite you to check the quality.
If you want a standard (unlabeled, unmarked) sample, we will send at no cost to you, save for shipping. After confirming your order, the sample’s freight cost will be deducted from your total cost.
If you need to change product size or any others specifications, email us details of those changes (preferably in pictures). We can renegotiate cost.