AHU Compliance to HTM-03-01 (2021)
A Daikin Applied (UK) CPD Training Session
Learn How to Design AHUs That Meet NHS Healthcare Ventilation Standards
As healthcare ventilation standards evolve, understanding the requirements of HTM-03-01 (2021) is essential for anyone involved in designing, specifying, or operating ventilation systems in clinical environments.
This free CPD session from Daikin Applied (UK) provides clear guidance on designing compliant systems, selecting appropriate components, and understanding the technical implications of the latest healthcare ventilation standards.
Whether working on new hospital builds or upgrading existing systems, this session will help you apply best practices in healthcare AHU design.
Why Attend?
Get a clear understanding of healthcare ventilation guidance.

- Stay up to date on current standards and best practice

Explore what makes a compliant AHU design.

Design with confidence and avoid compliance pitfalls

What Will You Learn?
What is HTM-03-01 and why is it important?
HTM-03-01 is a Healthcare Technical Memorandum published by NHS England. It provides detailed guidance on designing, installing and operating ventilation systems in healthcare settings. Although not mandatory, derogations must be authorised with equivalent levels of safety and performance.
The CPD explains the difference between Part A (design and validation) and Part B (operational management), and why early-stage understanding of HTM-03-01 matters.
Key changes in the 2021 update
The session highlights updates made to the 2007 version, including:
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The change from BS EN 779 to ISO 16890 for filter classification
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Revised component layout and construction standards
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More specific guidance on access, casing, fans, and filtration
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Relaxed limits on coil sizing and air velocities
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Emphasis on HEPA, EPA, and safe-change filter installations
AHU design requirements for compliance
The CPD explores the impact of poor design or cutting corners under value engineering, including:
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Hygiene and infection control risks
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Additional costs from rework or regulatory issues
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Inconsistent air quality performance in sensitive areas
How Daikin Applied UK supports HTM-compliant AHU design
Daikin Applied UK provides AHUs built to HTM-03-01 standards, including:
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Fully compliant construction and filtration solutions
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Extensive experience with healthcare environments
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FAT and documentation support
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Consultation on derogations and compliance
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Custom solutions tailored to clinical application needs
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