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DrSharpe Health
DrSharpe Health
| Technical Parameters | Design Features | ||
|---|---|---|---|
| Model NO. | MF204 | Filter Element | Replaceable |
| Color | Black | Transport Package | Bag |
| Shape | Dust Mask | Mask Type | Full Face Mask |
| Air Tightness | Leakage Rate < 0.05% | Type | Filtering Type |
| Size | S, M, L | Storage | 5 Years |
| Parameter Item | Performance Specifications |
|---|---|
| Protection period | Protection period against mustard gas > 360min |
| Inspiratory resistance | ≤350Pa (85L/min) |
| Weight | ≤950g |
| Field of vision | Total visual field > 70%, binocular visual field > 55%, lower visual field >35° |
| Overall protective performance | Protection factor ≥ 1x10⁴ |
| Exhalation valve | The pressure drop within 1min is not be greater than 360Pa when the pressure of the exhalation valve is reduced to -1180Pa |
| Strength of headband | ≥150N |
| Combination strength of mask and filter | ≥250N |
| Expiratory resistance | ≤150Pa (85L/min) |
Half-face respirator: Covers only the nose and mouth; lightweight with good field of vision. Suitable for low-risk and long-duration work such as home renovation and pesticide spraying. It does not protect against eye irritation, so goggles need to be worn separately.
Full-face respirator: Covers the nose, mouth and eyes with strong airtightness and full protection. Ideal for chemical operations, fire scenes and highly toxic environments; slightly heavier in weight.
Inspection: Check the mask for cracks, confirm the gas filter cartridge is intact and within validity period, and verify head straps are in normal condition.
Assembly: Screw the filter cartridge tightly into place; install the filter cotton following the air flow direction (usually the colored side faces outward).
Wearing: Hold the mask with both hands, put it on from bottom to top; adjust the neck straps first, then the top head straps. The tightness is proper when one finger can be inserted between the strap and face.
Air tightness test (mandatory):
• Inhalation method: Block the inlet of the filter cartridge with hands, take a gentle breath. It is qualified if the mask slightly collapses with no air leakage sound.
• Exhalation method: Cover the exhalation valve with hands, exhale gently. It is qualified if the mask slightly bulges with no air leakage.
Remove the filter cartridge and filter cotton (disposable, discard after use).
Clean the mask with neutral detergent and warm water, wipe clean with a soft cloth, and air dry naturally. Do not expose to direct sunlight, bake or use high temperature.
Focus on cleaning the exhalation valve and sealing ring, and check for deformation or adhesion.
Mask: Hang or lay flat, avoid folding and squeezing; place the silicone side upward to prevent deformation.
Filter cartridge: Store in a sealed original bag or sealed box separately, keep away from chemicals, high temperature and humidity.
Storage environment: Keep dry and ventilated with temperature ≤ 30℃; do not store together with oil, acid and alkali substances.
Regular check: Inspect the mask elasticity, head strap durability and filter cartridge validity period once a month.
The gas mask features a storage shelf life of 5 years. It fully complies with the GB 2890-2009 standards for respiratory protection, providing a mustard gas protection duration exceeding 360 minutes, and offers balanced inhalation and exhalation resistances designed to keep you safe in emergency response scenarios.
No, it is strictly forbidden to use this filtering-type gas mask under hypoxic (oxygen-deficient) conditions. For oxygen-deficient environments, it is recommended to use alternative specialized equipment, such as long tube breathing apparatus, self-contained breathing apparatus (SCBA), or compressed air breathing systems.
