1. 12
Breathing filters,
HMEFs and HMEs
A full range of breathing filters, heat and moisture exchanging filters
and heat and moisture exchangers for protection and humidification
Quality, innovation and choice

2. 13Airway management
1944 70 1944003 70
Filta-Guard
Filta-Guard
+ luer lock port
1844 35 1844003 35 1844197 50 1844351 40
Clear-Guard II
Clear-Guard II +
luer lock port
Clear-Guard II + luer
lock port and elbow
Clear-Guard II + luer lock port and flexible catheter
mount with elbow
Filta-Guard®
- a highly efficient breathing filter designed for use in the intensive care unit and anaesthesia
Clear-Guard®
- a mid range breathing filter designed for use in anaesthesia and intensive care with a variety of
patient connections.
Clear-Guard
Bacterial and Viral
Filtration efficiency
Resistance to flow
filter only
Compressible volume
filter only
Weight
filter only
Minimum
tidal volume
filter only
30L/min port 60L/min Without port With port Without port With port
>99.99% 0.9cm H2O 2.2cm H2O 50ml 62ml 27g 31g 200ml
All filters are independently validated for filtration efficiency at the Health Protection Agency, Porton Down, Salisbury, Wiltshire, U.K.
and Nelson laboratories inc, USA
The Intersurgical range of breathing filters and HMEFs have been designed
for the protection of the patient, breathing system and equipment, they have
been independently tested and proven to be highly efficient in preventing the
passage of bacteria and virus. Routine testing is carried out on all products
using Bacillus subtilis (1.0um x 0.7um) and Ø174 bacteriophage, (0.027
μm). Additional testing includes Mycobacterium tuberculosis (0.3um x1.0um),
Hepatitis C Virus (0.02um), Pseudomonas diminuta (0.5um) and MS-2
coliphage (0.02um). The ‘family; of filters, HMEFs and HMEs offer a full range
to suit all requirements.
Breathing filters
Breathingfilters
Filta-Guard
Bacterial and Viral
Filtration efficiency
Resistance to flow
filter only
Compressible volume
filter only
Weight
filter only
Minimum
tidal volume
filter only
30L/min 60L/min Without port With port Without port With port
>99.999% 1.1cm H2O 2.1cm H2O 67ml 68ml 40g 41g 200ml
Luer lock port
22M/15F22F22M/15F22F
Luer lock port Luer lock port Luer lock port22M/15F
22F/
15M
22F/
15M
22F/
15M
22F/
15M
22M/
15F
22M/
15F
22M/15F
Flexible catheter mount
Flow diffuser

3. 14 Airway management
Breathingfilters
1544007 150 1544 150 1544011 75
Clear-Guard 3 filter
Clear-Guard 3 filter
+ luer lock port
Clear-Guard 3 filter + luer lock port and Superset catheter mount
Breathing filters
1544012 75 1544351 70
Clear-Guard 3 filter + luer lock port and Superset
catheter mount with elbow
Clear-Guard 3 filter + luer lock port and Flexible catheter mount
with elbow
Clear-Guard®
3 angled filter - offers an easy to use option with an integral 90° elbow; reducing the need for an
additional catheter mount or separate patient elbow
Clear-Guard®
3 - a cost effective option with rounded ergonomic housing for anaesthesia and intensive care
Clear-Guard 3
Bacterial and Viral
Filtration efficiency
Resistance to flow
filter only
Compressible volume
filter only
Weight
filter only
Minimum
tidal volume
filter only
30L/min port 60L/min Without port With port Without port With port
>99.99% 0.9cm H2O 2.2cm H2O 59ml 60ml 27g 28g 200ml
Luer lock port
22F/15M
22M/
15F
Superset catheter mount
22M/15F 22F/15M 22M/15F
Luer lock port
22F/15M
1545 75
Clear-Guard 3 angled filter + luer lock port
Luer lock port Luer lock port22M/15F 22M/15F
Superset catheter mount Flexible catheter mount
22F/
15M
22F/
15M
Angled filter
Bacterial and Viral
Filtration efficiency
Resistance to flow
filter only
Compressible volume
filter only
Weight
filter only
Minimum
tidal volume
filter only
30L/min port 60L/min
>99.99% 0.9cm H2O 2.6cm H2O 75ml 34g 200ml
Luer lock port
22F/15M
22M/15F

4. 15Airway management
Inter-Guard filter - for use in breathing systems in anaesthesia and intensive care units, provided sterile
Breathingfilters
Breathing filters
1644012 75
Clear-Guard Midi + luer lock port and Superset catheter
mount with elbow
Inter-Guard filter
Bacterial and Viral
Filtration efficiency
Resistance to flow
filter only
Compressible volume
filter only
Weight
filter only
Minimum
tidal volume
filter only
30L/min port 60L/min Without port With port Without port With port
>99.999% 0.9cm H2O 2.0cm H2O 41ml 42ml 22g 23g 150ml
1644 100 1644131 50 1644011 75
Clear-Guard Midi + luer
lock port
Clear-Guard Midi + luer
lock port and mouthpiece
Clear-Guard Midi + luer lock port and Superset catheter mount
1344007S 125 1344000S 125 1344711S 50
Inter-Guard filter
Inter-Guard filter with
luer lock
Inter-Guard filter with Superset catheter mount
(12 hours use at patient connection)
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Clear-Guard®
Midi low volume - ensures deadspace is kept to a minimum and is ideal for use in anaesthesia
Clear-Guard Midi
Bacterial and Viral
Filtration efficiency
Resistance to flow
filter only
Compressible volume
filter only
Weight
filter only
Minimum
tidal volume
filter only
30L/min port 60L/min
>99.9% 0.8cm H2O 1.7cm H2O 34ml 19g 100ml
Luer lock port Luer lock port Luer lock port
22F 22M/15F 22F 22F 22M/
15F
22F
Luer lock port 22M/15F
Superset catheter mount
Superset catheter mount
Luer lock port
22F/
15M
22M/
15F
22F/
15M
22M/
15F
22F/
15M
22M/
15F
Low volume
Clear-Guard Midi

5. 16 Airway management
1745 40 1745197 50 1745011 75
Hydro-Guard Mini + luer
lock port
Hydro-Guard Mini + luer
lock port and elbow
Hydro-Guard Mini + luer lock port and Superset
catheter mount
Hydro-Guard
®
Mini - A versatile low volume pleated membrane breathing filter for use in anaesthesia as an HMEF,
moisture return 23mg H2
O/L at: VT 500ml, or in ITU as a filter only
Hydrophobic pleated membrane filters
Luer lock port
Superset catheter mount
Luer lock port Luer lock port
22F/15M
22F/
15M
22F/
15M
22M/15F
22M/15F
22F/
15M
1745012 75 1745711 75
Hydro-Guard Mini + luer lock port and Superset
catheter mount with elbow
Hydro-Guard Mini + luer lock port and Superset
catheter mount with detachable elbow
Luer lock port Luer lock port22M/15F 22M/15F
Superset catheter mount
22F/
15M
22F/
15M Superset catheter mount
Air-Guard Clear filter
Hydro-Guard Mini
Bacterial and Viral
Filtration efficiency
Resistance to flow
filter only
Compressible volume
filter only
Weight
filter only
Minimum
tidal volume
filter only
30L/min 60L/min
>99.999% 1.3cm H2O 2.7cm H2O 63ml 30g 200ml
Air-Guard Clear
Bacterial and Viral
Filtration efficiency
Resistance to flow
filter only
Compressible volume
filter only
Weight
filter only
30L/min 60L/min
99.9999% 0.7cm H2O 1.7cm H2O 120ml 56g
1790 50
Air-Guard Clear filter
22M/15F22F
The Air-Guard Clear filter is
a hydrophobic pleated
membrane filter designed for
the protection of oxygen
concentrator machines and
other respiratory equipment.
Please note: This product
is contraindicated for use at
the patient connection of the
breathing system.
Breathingfilters

6. 17Airway management
Filta-Therm Plus
Bacterial and
Viral Filtration
efficiency
Moisture
return at:
VT500ml
HMEF only
Resistance to flow
HMEF only
Compressible volume
HMEF only
Weight
HMEF only
Minimum
tidal
volume
HMEF only
30L/min 60L/min
>99.999% 31.5mg H2O/L 1.3cm H2O 3.0cm H2O 66ml 44g 200ml
Filta-Therm
®
Plus - the optimum solution for intensive care with improved HME performance and high filtration efficiency
Heat and moisture exchanging filters - HMEFs for both protection and humidification
1942 70 1941 70 1941197 50
Filta-Therm Filta-Therm + luer lock port Filta-Therm + luer lock port and elbow
Luer lock port
22F
22M/15F
1941001 70
Filta-Therm Plus + luer lock port
Luer lock port
22M/15F22F
Filta-Therm
®
- a high efficiency heat and moisture exchanging filter with a variety of patient connections
Filta-Therm
Bacterial and
Viral Filtration
efficiency
Moisture
return at:
VT500ml
HMEF only
Resistance to flow
HMEF only
Compressible volume
HMEF only
Weight
HMEF only
Minimum
tidal
volume
HMEF only
30L/min 60L/min Without With port Without With port
>99.999% 29.1mg H2O/L 1.2cm H2O 3.0cm H2O 66ml 67ml 42g 43g 200ml
22F/15M 22F/15M
Luer lock port
22F 22F
1941011 20 1941351 20
Filta-Therm + luer lock port and Superset catheter mount
Filta-Therm + luer lock port and Flexible catheter
mount with elbow
Luer lock port Luer lock port
22M/15F
22F Superset catheter mount Flexible catheter mount
22M/15F
Heatandmoistureexchangingfilters-HMEFs
Filta-Therm Plus

7. 18 Airway management
Clear-Therm
Bacterial and
Viral Filtration
efficiency
Moisture
return at:
VT500ml
HMEF only
Resistance to flow
HMEF only
Compressible volume
HMEF only
Weight
HMEF only
Minimum
tidal
volume
HMEF only
30L/min 60L/min
>99.99% 32mg H2O/L 1.0cm H2O 2.4cm H2O 61ml 32g 200ml
Clear-Therm® - mid range filtration efficiency HMEF with a variety of patient connection
Heat and moisture exchanging filters
1841 35 1841197 50 1841011 20
Clear-Therm + luer
lock port
Clear-Therm + luer
lock port and elbow
Clear-Therm + luer lock port and Superset catheter mount
Luer lock port
Superset catheter mount
Luer lock port Luer lock port
22F/
15M
22F/
15M
22M/15F
22M/15F
22F/
15M
1841012 75 1841351 40
Clear-Therm + luer lock port and Superset catheter
mount with elbow
Clear-Therm + luer lock port and Flexible catheter
mount with elbow
Luer lock port Luer lock port22M/15F
Superset catheter mount Flexible catheter mount
22M/15F
1841974 75 1841015 20
Clear-Therm + luer lock port and Flexible catheter
mount with detachable elbow
Clear-Therm + luer lock port anf Flexible catheter mount
with double swivel elbow and double ‘flip top’ cap
Luer lock port
Flexible catheter mount
22M/15F
22F/
15M
22F/
15M
Luer lock port 22M/15F
Superset catheter mount
22F/
15M
22F/
15M
1841 1841197 1841351
Heatandmoistureexchangingfilters

8. 19Airway management
Clear-Therm
®
Plus - HMEF for use in anaesthesia and intensive care with HME on the patient side
Heat and moisture exchanging filters
1841001 35 1841111 20
Clear-Therm Plus + luer lock port Clear-Therm Plus + luer lock port and Superset catheter mount
Luer lock port
Superset catheter mount
Luer lock port
22F/15M 22M/15F22M/15F 22F/15M
Clear-Therm Plus
Bacterial and
Viral Filtration
efficiency
Moisture
return at:
VT500ml
HMEF only
Resistance to flow
HMEF only
Compressible volume
HMEF only
Weight
HMEF only
Minimum
tidal
volume
HMEF only
30L/min 60L/min
>99.99% 32mg H2O/L 1.0cm H2O 2.4cm H2O 61ml 32g 200ml
Clear-Therm
®
Mini and Micro - HMEFs for paediatrics and neonates
Bacterial and
Viral Filtration
efficiency
Moisture
return at:
HMEF only
Resistance to flow
HMEF only
Compressible volume
HMEF only
Weight
HMEF only
Minimum
tidal
volume
HMEF only
Clear-Therm Mini
(at: VT250ml)
32mg H2O/L
(at: 30L/min)
1.6cm H2O
28ml 22g 75ml
99.99%
Clear-Therm Micro
(at: VT25ml)
27mg H2O/L
(at: 11L/min)
1.0cm H2O
11ml 12g 75ml
99.99%
1831 40 1831197 40 1441 20
Clear-Therm Mini paediatric HMEF
+ luer lock port
Clear-Therm Mini paediatric HMEF
+ luer lock port with elbow
Clear-Therm Micro neonatal HMEF
+ luer lock port
Luer lock port
22F/15M 22M/15F 22F/15M
22M/15FLuer lock port Luer lock port
15M 15F/8.5F
1831 1441
Heatandmoistureexchangingfilters
Clear-Therm Mini Clear-Therm Micro

9. 20 Airway management
Clear-Therm
®
Midi low volume - a low volume option for minimising dead space in anaesthesia
1641 100 1641197 50 1641012 75
Clear-Therm Midi + luer
lock port
Clear-Therm Midi + luer
lock port and elbow
Clear-Therm Midi + luer lock port and Superset
catheter mount with fixed elbow
Luer lock
port
Superset catheter mount
22F
22M/15F
22F 22M/15F 22F
22M/15F
Heat and moisture exchanging filters
Clear-Therm Midi
Bacterial and
Viral Filtration
efficiency
Moisture
return at:
VT500ml
HMEF only
Resistance to flow
HMEF only
Compressible volume
HMEF only
Weight
HMEF only
Minimum
tidal
volume
HMEF only
30L/min 60L/min
>99.9% 23mg H2O/L 1.0cm H2O 2.2cm H2O 34ml 19g 100ml
Clear-Therm®
3 - a cost effective option with rounded ergonomic housing for anaesthesia and intensive care
1541012 75 1541351 70
Clear-Therm 3 + luer lock port and Superset catheter
mount with elbow
Clear-Therm 3 + luer lock port and Flexible catheter mount
with elbow
Superset catheter mount
Luer lock port 22M/15F
Clear-Therm 3
Bacterial and
Viral Filtration
efficiency
Moisture
return at:
VT500ml
HMEF only
Resistance to flow
HMEF only
Compressible volume
HMEF only
Weight
HMEF only
Minimum
tidal
volume
HMEF only
30L/min 60L/min
>99.99% 30.6mg H2O/L 1.0cm H2O 2.6cm H2O 60ml 30g 200ml
1541 150 1541197 50 1541011 75
Clear-Therm 3 + luer
lock port
Clear-Therm 3 + luer
lock port and elbow
Clear-Therm 3 + luer lock port and Superset
catheter mount
Luer lock port Luer lock port 22M/15F
22F/
15M
22M/15F
1541974 40
Clear-Therm 3 + luer lock port and Superset
catheter mount with detachable elbow
Luer lock
port
Luer lock
port
Superset catheter mount
22M/15F
22F/
15M
Flexible catheter mount
Luer lock port
22M/15F
22F/
15M
22M/15FLuer lock
port
Superset catheter mount
22F/
15M
22F/
15M
Luer lock port
22F/
15M
Heatandmoistureexchangingfilters
1541351

10. 21Airway management
Heat and moisture exchanging filters
Clear-Therm®
angled HMEF- offers an easy to use option with an integral 90° elbow; this reduces the need for an
additional catheter mount or separate patient elbow.
Clear-Therm
angled Bacterial
and Viral Filtration
efficiency
Moisture
return at:
VT500ml
HMEF only
Resistance to flow
HMEF only
Compressible volume
HMEF only
Weight
HMEF only
Minimum
tidal
volume
HMEF only
30L/min 60L/min
>99.99% 29.4mg H2O/L 1.1cm H2O 2.6cm H2O 75ml 38g 200ml
1542 75
Clear-Therm angled HMEF + luer lock port
22M/15F
Luer lock port
22F/15M
Inter-Therm®
- for use in breathing systems in anaesthesia and intensive care unit, provided sterile
13410007S 125 1341000S 125 1341011S 50
Inter-Therm HMEF
Inter-Therm HMEF + luer
lock port and elbow
Inter-Therm HMEF + luer lock port and Superset
catheter mount
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Luer lock port
Superset catheter mount
22M/15F
22F/
15M
22M/15F
Inter-Therm
Bacterial and
Viral Filtration
efficiency
Moisture
return at:
VT500ml
HMEF only
Resistance to flow
HMEF only
Compressible volume
HMEF only
Weight
HMEF only
Minimum
tidal
volume
HMEF only
Without port With port Without port With port Without port With port
>99.999% 32mg H2O/L 1.6cm H2O 3.0cm H2O 56ml 57ml 30g 31g 150ml
22F/
15M
22M/15F
Luer lock port
22F/
15M
1341580S 50
Inter-Therm HMEF + luer lock port and Smoothbore catheter
mount with double swivel elbow and double ‘flip top’ cap
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Smoothbore catheter mount
22M/15F
Luer lock port
22F/
15M
Heatandmoistureexchangingfilters
1341580S

11. 22 Airway management
Heat and moisture exchangers
Hydro-Therm®
- HMEs designed for use in the intensive care unit and anaesthesia
Moisture return at:
VT 500ml
HME only
Resistance at:
HME only
Compressible volume
HME only
Weight
HME only
Minimum
tidal volume
HME only
30L/min 60L/min Without port With port Without port With port
Hydro-Therm
0.7cm
H2O
1.9cm
H2O
15ml 16ml 11g 12g 50ml
30mg H2O/L
Hydro-Therm II
0.3cm
H2O
1.4cm
H2O
N/A 60ml N/A 33g 200ml
33mg H2O/L
1850 20 1855 20 1860 35
Hydro-Therm Hydro-Therm + luer lock port Hydro-Therm II + luer lock port
Luer lock port
15M 22M/15F 22M/15F15M 22M/15F 22F/15M
Luer lock port
Hydro-Therm®
3 - cost effective option with rounded housing for anaesthesia and intensive care
Moisture return at:
VT 500ml
HME only
Resistance at:
HME only
Compressible volume
HME only
Weight
HME only
Minimum
tidal volume
HME only
30L/min 60L/min
31.6mg H2O/L 0.2cm H2O 0.8cm H2O 59ml 31g 50ml
1560 150 1560411 100
Hydro-Therm 3 HME + luer lock port
Hydro-Therm 3 HME + luer lock port and Superset
catheter mount
22F/15M 22M/15F 22F/15M 22M/15F
Luer lock port Luer lock port
Hydro-Trach®
T Mk.II - designed for use on tracheostomised patients
Moisture return at:
VT 500ml
HME only
Resistance at:
HME only
Compressible volume
HME only
Weight
HME only
Minimum
tidal volume
HME only
30L/min 60L/min
26mg H2O/L 0.2cm H2O 0.7cm H2O 19ml 8g N/A
1873 25 1874 40
Hydro-Trach T Mk.II Hydro-Trach T Mk.II + O2 tube
O2 tube
not to scale
15M 15M
Heatandmoistureexchangers