GC Halo Graphene Antipathogen Filter Coating

Graphene Composites (GC) is an advanced materials engineering company with offices in Sedgefield (UK), Providence (US) and Oslo (Norway), and an ASEAN business development manager. Its product lines cover ballistic protection, defence, vibration control, thermal management and antipathogen materials. Co-founders are Sandy Chen and Carol Jarvest.

GC Halo is a graphene oxide and silver nanoparticle ink applied to air filters as a trap-and-kill layer for pathogens. The coated filters replace existing ones without retrofitting ventilation systems. Thai manufacturer Sun Filter applies the coating to its NanoGuard filters sold in Southeast Asia; early Thai users included a garment manufacturer and an international school.

• Trap-and-kill coating: graphene oxide and silver nanoparticle ink on filter media.
• Drop-in filters: coated filters fit existing ventilation systems.
• Regional manufacturing: Sun Filter applies the coating to NanoGuard filters in Thailand.
• Broad claims: virus, bacteria and mould reduction stated by the company.
• Wider GC range: thermal management, vibration control and ballistic materials from the same graphene platform.

Antipathogen filters for air-conditioned schools and kindergartens in Vietnamese cities. Replacement filters for hospital and clinic ventilation. Air filtration in garment and electronics factories with dense workforces.

Company claims over 99% effectiveness against SARS-CoV-2, influenza, bacteria and mould. Drop-in replacement filters need no ventilation retrofit. Manufacturing partner in Thailand serves Southeast Asian customers. Coating targets the viral lipid membrane, so the company says it works across variants.

Indoor air quality has become a standing concern for schools, hospitals and factories after the pandemic. In Vietnam and Southeast Asia, air-conditioned offices, schools and factories use filter-based ventilation, and a Thai manufacturing partner already supplies the region.

Offices: Sedgefield (UK), Providence (US), Oslo (Norway). Partners listed on site include Sun Filter and Thomas Swan. The site also lists a Business Development & Marketing Manager for ASEAN. Fetched GC Halo release dated 2022-10; latest news 2026-10.