Fit check

1. Place both hands over mask.
2. Take a deep breath and hold your breath for a few seconds, making sure the mask collapses inward as you inhale.
3. Then exhale and hold your breath for a few seconds, making sure the mask bulges outward as you exhale.
4. If air leaks, reposition the mask, tighten the metallic strip and reposition the elastic bands for a better fit.
5. Follow steps 1-3 again until a tight seal has been achieved.
6. Masks that have passed the fit check are now safe to use.
7. Facial hair or other facial features may prevent the mask from achieving a proper fit. If a tight seal is not achievable, please DO NOT use this product.
8. If you experience difficulty breathing, dizziness, or other symptoms, leave the contaminated area immediately.

WARNINGS

1. The mask does not eliminate the risk of contracting any disease or infection.
2. Improper use may lead to illness and even death.
3. Use this product immediately after package is opened.
4. Not recommended for more than 8 hours of use.
5. DO NOT sleep while wearing the mask.
6. Avoid hand contact within the interior part of the mask.
7. DO NOT use masks if they expired.
8. For one-time use only. Dispose the mask according to regulations.
9. DO NOT use if package is damaged.

Time Use Limitation

1. If the mask becomes damaged, soiled, or breathing becomes difficult, leave the contaminated area and replace and refit the new mask.

Important Notice

1. To the extent permitted by law, BYD shall not be liable for any loss or damage including any loss of business, loss of profits, or for any indirect, special, incidental or consequential loss or damage arising from reliance upon any information herein provided by BYD. Nothing in this statement will be deemed exclude or restrict BYD's liability for death or personal injury arising from its negligence.
2. Staples are used for strap fastening, it is normal that small punctures be found around the staples. Product sampling has been processed to ensure the respirators meet Part 84 approval requirement.
3. The process of the strap fastening has been strictly controlled. Any enlarged holes resulting from ripped filter material around staple punctures are considered as damage.
4. Filtering facepieces are to be inspected prior to each use to assure there are no holes in the breathing zone other than punctures around staples and no damage has occurred.
5. Before occupational use of this respirator, a written respiratory protection program must be implemented meeting all the local government requirements. In the United States, employers must comply with OSHA 29 CFR 1910.134 which includes medical evaluation, training, and fit testing.