SWKI VA104-01:2026 is a standard published by the Schweizerischer Verein von Gebäudetechnik-Ingenieuren that outlines hygiene requirements for ventilation and air-conditioning systems in Switzerland.

Purpose and objectives

The primary objective of SWKI VA104-01:2026 is to ensure optimal indoor air quality through effective hygiene management of ventilation and air-conditioning systems. This standard aims to establish clear guidelines that minimize health risks associated with airborne contaminants. By setting hygiene requirements, the standard promotes safety in various indoor environments, including residential, commercial, and industrial spaces, thereby safeguarding public health and enhancing comfort.

Scope: who must comply

SWKI VA104-01:2026 applies to a wide range of stakeholders involved in the design, installation, operation, and maintenance of ventilation and air-conditioning systems, commonly known as RLT systems (Raumlufttechnik). Typical industries include:

• Construction and building management
• Facility management
• HVAC (heating, ventilation, and air conditioning) contractors
• Indoor air quality consultants Organizations within these sectors must comply with the standard to maintain hygiene standards and ensure compliance with applicable regulations.

How SWKI VA104-01:2026 relates to other standards

SWKI VA104-01:2026 is part of a broader framework of standards that govern hygiene and air quality. Notably:

• VDI 6022 Blatt 1:2018 outlines hygiene requirements for air-conditioning systems, serving as a key reference for compliance.
• VDI 3803 Blatt 4:2023 provides technical specifications for measurement and evaluation of indoor air quality, complementing SWKI’s focus on hygiene.
• VDI/ÖFR 6022 Blatt 1.1:2024 further elaborates on hygiene inspections, supporting the implementation of best practices in facility management.

Revision history and current status

The current revision of SWKI VA104-01 is from the year 2026. This version introduces important updates, including enhanced guidelines for hygiene inspections and operational practices for RLT systems. The changes reflect advancements in technology and increased understanding of health implications associated with indoor air quality. Stakeholders are encouraged to review the latest updates to ensure ongoing compliance and promote best practices within their organizations.