Many students today suffer from ________ problems, since they are under too much pressure.

A. recreation-related B. pollution-related

C. stress-related D. pollution-free

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Use For

Use for mechanically generated dusts, mists from processing minerals including coal, iron ore, silica, cotton, flour and certain other substances in concentrations up to ten times the Occupational Exposure Standard or according to local regulations.

Do Not Use For

Do not use for paint spraying and sandblasting applications or for protecting against gases and vapors. Do not use in atmospheres containing less than 19.5% oxygen, as this respirator does not supply oxygen. Not for use in oil mist atmosphere.

Use Limitations

1. The wearer must first be trained in the proper use and fit tested before using this respirator.

2. Do not use this respirator when concentrations of contaminants are immediately dangerous to life or health.

3. Leave the contaminated area immediately if breathing becomes difficult, or dizziness or other distress occurs.

4. Discard and replace respirator if it becomes damaged or breathing resistance becomes excessive.

5. Inspect respirator before each use to ensure it is in good working condition.

6. Do not alter, wash, abuse or misuse this respirator.

7. Do not use with beards or other facial hair or other conditions that prevent a good seal between the face and the sealing edge of the respirator.

8. Can be used up to the limits specified by applicable government regulations for this product.

9. Failure to follow all instructions and warnings on the use of this respirator and/or failure to wear this respirator during all times of exposure can reduce respirator effectiveness and may result in illness or permanent disability

10. Maximum operating temperature: +50°C.

Caution

Care should be taken when using the product at low temperatures as excessive moisture may cause alves(呼吸閥) to freeze.

Storage Conditions and Shelf Life

Shelf life of unopened product is 5 years from date of manufacture when stored within temperature range of -20°C to +30°C and at less than 80% relative humidity.

Warning

This respirator helps protect against certain particles. Misuse can result in sickness or death. For proper use, see supervisor or user instructions in the box or contact 3M Co. Ltd.

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A. Temperature: 50°C; Humidity: 40%

B. Temperature: 50°C; Humidity: 80%

C. Temperature: 25°C; Humidity: 40%

D. Temperature: 25°C; Humidity: 80%

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