Benefits of the Exflow white haven

1. Howorth Air Technology
The Exflow – The Benefits

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Howorth – Pure Protection
“For more than 150 years the
Howorth name has represented
technical creativity and expertise
in air engineering and its
application to climatise and
control the working
environment.”

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Howorth Group Structure
Howorth
Westbury
Holdings
Howorth Air
Technology
Howorth
Medical
Howorth
Service
Howorth
Pharma
Westbury
Filtermation

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Ultraclean Operating Theatres
Creating Safe, Clean & Efficient Working Environments
 Clean air engineering specialist
 Equipment designed to exceed the guidelines
 Patient safety at the heart of our products
 Maintainable Solutions
 Experts clinical area design, installation and commissioning
 In House Design, Installation and Commissioning
 ISO 9001:2008 Quality driven approach

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Ultra Clean Air - CONSIDERATIONS
 Screened or Screenless
 Performance – At Rest & In Use
 Cleaning
 Servicing

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Ultra Clean Ventilation - SCREENED
Integral fans – self contained
Acrylic easy to clean screens
Open aspect beneath the canopy

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A Revolution in Screenless Ultra Clean Canopy
Designed for the Modern Operating Theatre
Exflow™ EVOLUTION
No Low Level Return Required
No Remote Fan System
No Supplementary Cooling
Completely Self Contained
Patent Pending Coanda Air Curtain

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Integrated General Lighting
- In excess 1200 Lux
Return Air path for recirculated air
Exflow™ EVOLUTION
Powder coated Stainless steel diffuser
• Easy to clean
• Unbreakable
Coanda Air Diffuser

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Exflow Screened UCV
• Used extensively in the UK and RoW
• The Exflow system utilises diffuser panels, partial wall and ceiling
mounted returns to develop the effective “Exflow” air flow pattern
• No need for low level returns

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Exflow Evolution Screenless UCV
• Highest performance to HTM standards
• This system utilises diffuser panels, coanda air knife and ceiling mounted
returns to develop the distinctive “Exponential ” air flow pattern
• Fully integratedNo need for low level returns

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Screenless UCV with low level returns
• Low air flow rates and can suffer from inadequate dilution and entrainment
protection
• Theatre equipment and personnel may cause obstructions to airflow
• Requires bigger operating room to incorporate low level ducts
• Some require additional cooling systems to maintain air bouyancy
• Considerable additional cost and space required for adequate performance

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Howorth Integrated UCV - Screened or Screenless
Operating Room

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Remote UCV System
Operating Room

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Cleaning the Exflow
 Everyday cleaning
− The Exflow diffuser is manufactured from
perforated steel
− Powder coated finish
− Robust wipe clean element
− Easy access below and above the screen for
wipe down

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Exponential Diffuser Panels - Benefits
• Provides exponential air pattern for optimised air flow
pperformance
• Arterial Blood Splatters can be wiped away
• HEPA filters situated 6” from diffuser face to reduce risk of
blood contamination
• No CG Mesh Filter Screen;
− unable to be cleaned
− need regular replacement

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Exflow – Exclusive Benefits
• Exponential air flow, higher
central velocity overcomes
thermal buoyancy
• Up to 500 air changes an
hour
• Over 3600 installed
worldwide.
• Diffuser Panels, not CG
screens
• No low level returns

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HOWORTH EXFLOWTM UCV THEATRE

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The Howorth Standard
• No CG Screens
− Can become embedded with blood
− Airflow then passes across contaminated area until they are replaced
• No low level returns
− Use up valuable space within theatre
− Can become contaminated, require additional cleaning
− Equipment & Theatre Personnel can disturb the airflow

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Inventors of Ultra Clean Ventilation
• Using HEPA filtration, Exflow
achieves 99.997% removal of
bacteria down to 0.3µ (MPPS)
• Leading to massive reduction
in Air Borne Contaminant

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The Gold Standard in Ultra Clean Surgery
Howorth – Inventors of Ultra
Clean technology
In test after test, and trial after
trial.
Exflow has consistently proven
to be the top performing Ultra
Clean Ventilation System.

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Whitehaven

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Howorth Air Technology
Equipment:
• Exflow 32 Ultra Clean Ventilation
Canopies
OR
• Exflow EVOLUTION 32 Ultra Clean
Ventilation Canopies
• Theatre Control panels:
− Membrane fascia
− Touchscreen
− Stainless Steel
• Integrated Service Pendants
• Op Lighting

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Exflow 32
• 3.2m x 3.2m Clean Zone
• Integral Fans
• Quiet (52dBA)

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Exflow EVOLUTION 32
Your Screenless Exflow Solution

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Exflow EVOLUTION
Similarities to Exflow Added advantages
Footprint and dimensions Even better entrainment results
Power requirements No screens
Ventilation loading More flexible
Ease of maintenance Less cleaning required
No low level air ducts required Suitable for hybrid theatres
Maximal use of theatre space Future proofed
No interference from theatre equipment or
personnel
Excellent temperature control of theatre

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Coanda Technology
• The success of the Exflow Evolution is in its simplicity
• Air engineering eliminating the need for bulky low level
returns
• Integral fans and filters
• All the original benefits of the world leading Exflow, but
better!

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Installed, In construction – A selection…
• 16 x Exflow 32 EVOLUTION – Bristol Southmead Hospital
• 10 x Exflow 28 EVOLUTION – Spire Hospitals
• 8 x Exflow 28 EVOLUTION – HCA Hospitals
• 4 x Exflow 28 EVOLUTION – Nuffield Hospitals
• 4 x Exflow 32 EVOLUTION – Leighton Hospital
• 2 x Exflow 28 EVOLUTION – Aintree University Hospital
• 2 x Exflow 28 EVOLUTION – The Walton Centre
• 7 x Exflow 32 EVOLUTION – Edinburgh Sick Childers Hospital

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Surgeon’s Control Panels

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Membrane Theatre Control panels...
• Easy Clean Lexan Fascia
• All Controls and
Indication on
permanent display
• IPS/UPS monitoring
• Medical Gas Alarm
Panels
• HTM03-01 Ventilation
Indication Mimic
• Add-on Modules for
Laser & X-Ray
Integration

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Touchscreen Theatre Panels

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Pendants, Booms & Ceiling Services
• Howorth’s Extension range of
pendants is the only system designed
to work in conjunction with the
Exflow
• Howorth also supply endoscopy
system carriers and a variety of multi
monitor screen booms & arms
• The Howorth range of service
pendants are CE registered & fully
compliant with international
standards

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Surgical Lighting
• Surgical lighting can have a
substantial influence on the
performance of an UCV
• And therefore the overall
sterility of the operating
room
• Integrates with all most
manufacturers

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Our People Our Strength
• Project Managers
• Site Installation Managers
• Commissioning Engineers
• Quality, H&S and Environmental Manager
• 8 Mobile Service Engineers
• In-House manufacturing
• All under one roof

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Howorth Service, Validation & Maintenance
• 8 Directly employed Service Engineers
• 4 Commissioning Engineers
• National coverage
• Equipped with most up-to-date equipment
• Many installations in excess of 20yrs ld

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Howorth Added Value....
• 40 years Operating Theatre design & development
• In-House design, manufacture, project
management, commissioning & validation
• Integrated engineering solutions

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Questions?