HALYARD PUREZERO® HM4 Non-Sterile Pleated Cleanroom Face Mask with Earloops – ISO Class 4+

HALYARD PUREZERO® HM4 Pleated Face Mask with Earloops is a non-sterile, three-layer cleanroom face mask designed for controlled environments where high filtration performance, low linting materials and user comfort are required. The mask is suitable for industrial and cleanroom applications, including pharmaceutical and biotechnology environments.

The mask is constructed from low-linting materials and features a SO SOFT® biocomponent inner lining for enhanced comfort during extended wear. It is double-bagged and recommended for use in ISO Class 4 and above cleanroom environments, including GMP Grade B/C/D. The mask includes a polyester foam nose band with a flat aluminum wire to support a secure fit and reduce fogging.

Key Features

– Non-sterile pleated cleanroom face mask with earloops
– Recommended for ISO Class 4/5/6/7 and GMP Grade B/C/D
– Three-layer construction with high filtration performance
– High bacterial, particulate and viral filtration efficiency
– SO SOFT® biocomponent inner lining for wearer comfort
– Low linting materials suitable for cleanroom use
– Nylon elastic earloops
– Flat aluminum nose wire with anti-fog polyester foam
– Ultrasonically bonded edges and seams
– Latex-free
– Shelf life: 3 years

Filtration Performance

– Bacterial Filtration Efficiency (BFE ≥ 98%): 99.66% (ASTM F2101, 3.0 µm)
– Particulate Filtration Efficiency (PFE ≥ 98%): 99.2% (ASTM F2299, 0.1 µm)
– Viral Filtration Efficiency (VFE ≥ 97%): 99.1% (ASTM F2101, 3.0 µm)
– Differential Pressure: 2.5 mm H₂O/cm² (EN 14683:2019, Appendix C)

Materials

– Outer layer: SO SOFT® biocomponent material (polyester and polyethylene)
– Filter media layer: Polypropylene meltblown
– Inner layer: SO SOFT® biocomponent material (polyester and polyethylene)
– Nose piece: Flat aluminum wire with anti-fog polyester foam
– Earloops: Nylon elastic

Applications

– Pharmaceutical and biotechnology cleanrooms
– Controlled GMP environments
– Industrial cleanroom operations requiring high filtration and comfort

Important Notice

– Designed for cleanroom and industrial use only
– Not intended for medical or surgical use
– Not a medical device

View the technical data sheet by clicking HERE