Zentek ZenGUARD

ASHRAE numbers: Preliminary (company recap of a test). Health Canada classification: dated release.

Parent: [[reference/applications]] · [[topics/manufacturing/zentek]]

ZenGUARD is a coating on a substrate. HVAC filter media and surgical masks / air-contact surfaces.

Regulatory

• Brand 13 Apr 2021. Canadian patent PPE + HVAC granted 6 Dec 2022 (term to 20 Sep 2041) in later SEC text.
• 29 Nov 2021 — Health Canada MDEL 18823, Class I including coated devices.
• 6 May 2026 — PRD: Enhanced Air Filters not under the Pest Control Products Act; s. 3(1)(a) mechanical mode of action; conditional on design, instructions, marketing. Company then accepting Canadian filter orders.

ASHRAE 52.2 (company)

6 May 2026 materials: media tested to ASHRAE 52.2; MERV 9 with pressure drop they say matches uncoated media at standard and high airflow. The lab report file is not on this shelf. The ASHRAE standard PDF is a paid method document, not their result sheet.