Knowledge Base
Frequently Asked Questions
Answers to the most common questions that our customers ask!Size Guide
B2 Mask Size GuideQuick Start Guide
Quick tips and a tutorial videos for new owners of he B2 MaskProduct Information
Product performance and specifications for the B2 Mask, B2 Filters, and accessoriesWebstore & Sales Support
Information about our online store and how to place a bulk purchase for your team.Orders & Shipping
How to update existing orders, and information about shipping and delivery times.Contact Us
Information on how to reach us!
Recent Articles
Instructions for the B2 Mask Liner
The B2 Mask Liner is an optional accessory designed to reduce humidity buildup within the B2 Mask. It fits inside the seal of the B2 facepiece. B2 Mask Liners may be purchased here on our webstore. Materials 100% ultra-absorbent double-celled ...Is there a referral program?
Yes, please use this referral link to recommend Breathe99 products to your family and friends. Every time someone buys a mask using the referral link both of you would get a free filter pack.Can I use multiple discount codes?
Only one discount code or offer can be applied per order. Please select the offer that works best for you.Can I change my shipping address once the order is placed?
We usually try to process and ship the order as soon as possible, therefore, please contact our support team immediately.What shall I do if I didn't receive my complete order?
We apologize for the inconvenience! Please contact our support team with the following information: Your order number The issue with your order