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

HALYARD PUREZERO® HM4 Pleated Face Mask with Ties is a non-sterile, three-layer cleanroom face mask designed for controlled environments where high filtration efficiency, low linting materials and secure fit are required. The mask is intended for cleanroom and industrial use and is not designed or certified for medical or surgical applications.

The mask is constructed from low-linting materials and features a SO SOFT® biocomponent inner lining to improve comfort during extended wear. It is double-bagged and recommended for use in ISO Class 4 and higher cleanroom environments, including GMP Grade B/C/D. Long polypropylene ties provide a stable and adjustable fit, making the mask suitable for environments where earloop use is not preferred.

Key Features

– Non-sterile pleated cleanroom face mask with long ties
– Designed for cleanroom and industrial use only, not medical use
– 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 environments
– Polypropylene spunbond ties, 37” length
– 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
– Ties: Polypropylene spunbond, 37” length

Applications

– Pharmaceutical and biotechnology cleanrooms
– Controlled GMP environments
– Industrial cleanroom operations where a secure tie-on mask is required

Important Notice

– 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