Breathing Air Purifiers
Parker domnick hunter Breathing Air Purifiers provide air 1,000,000 times cleaner than the air we breathe. The use of compressed air as a source of breathable air is well accepted throughout industry, being readily available and relatively inexpensive to produce.
Why purify compressed air?
In recent years, employers have become increasingly aware of their responsibility to comply with International Breathing Air Standards. The standards define the quality of breathing air that must be provided to operators working in contaminated environments.
Contaminants frequently present in compressed air that threaten the well being of breathing air users are:
- Solid particles
For compressed air to be suitable for breathing air applications it must be properly purified to ensure that it meets the relevant Breathing Air Standard.
What type of purifier should be used?
With a wide variety of purification products available, ranging from a simple respirator offering basic protection against low levels of dust particles to self contained breathing apparatus it is essential that the
inhalation risks be fully assessed and a suitable purification product selected.
Parker domnick hunter breathing air purifiers are designed to offer the user protection against some or all of the contaminants that may be present in a compressed air fed breathing air system.
As the world leader in filtration and purification of compressed air, Parker domnick hunter offers unrivalled experience in the design and manufacture of air treatment equipment.
With Parker domnick hunter breathing air purifiers in constant use worldwide, protecting lives in virtually every type of industry and the commitment to continuous research and development, Parker domnick hunter provides a complete range of breathing air purifiers designed to match the specific needs inherent when breathing from a compressed air supply.
How do you know the quality of breathing air required?
Whatever the application, the quality of the compressed air used for breathing air applications is detailed in International Breathing Air Standards.
The applicable standard for the country of use will not only detail the maximum allowable levels of contaminants but also give an indication of the selection criteria for protection devices.
If doubt exists about the potential of a possible contaminant then steps must be taken to either monitor the air quality or install a suitable purification device to ensure compliance with the standard.
Where would you use a Parker domnick hunter breathing air purifier?
Many applications exist, ranging from the life
threatening environments of fire fighting, hazardous
shot blasting and paint spraying operations, to
critical, medical and hospital air requirements. Typical Applications includes:
- High pressure cylinder filling
- Tank cleaning
- Pharmaceutical manufacturing
- Spray painting
- Medical and hospital air
- Offshore / Marine
- Asbestos removal
Breathing Air Purifiers without CO or CO2 reduction
These are used to treat the following contaminents:
- Solid Particles
- Water Mists
- Oil Mists
- Oil Vapour
- Odours & Fumes
Parker domnick hunter BA-PAC
The BA-PAC is a personal breathing air purifier which uses activated carbon to remove odours and tastes, when breathing from a compressed air system.
Comprising of a lightweight activated carbon filter cartridge, housing and continuous flow adjustable regulator, the BA-PAC delivers controlled breathable air to the user’s hood, visor or mask. OIL-X EVOLUTION Grade AA pre-filtration is also recommended.
BA-2006 and BA-2013
The Parker domnick hunter BA-2006 and BA-2013 two stage point of use breathing air filter sets are supplied complete with mounting brackets. These combine high efficiency coalescing pre-filtration elements with odour removal, activated carbon elements in two stage housings.
A pressure regulator allows adjustment of line air pressure to useable levels.
BA-4350 and BA-1400
The Parker domnick hunter BA-4350 and BA-1400 portable breathing air purifiers provide high quality breathable air from a normal compressed air supply.
Combining high efficiency coalescing and activated carbon filtration stages, both units are housed in compact, weatherproof, impact resistant cases which can supply air for up to four users.
The BA-1400 also includes a water separator for the removal of bulk liquids and is available with an optional CO monitor.
BAFP-064B and BAFP-170B
For higher flow, stationary applications, Parker domnick hunter offers two breathing air filtration panels, BAFP-064B and BAFP-170B. These wall mounted panels use the same type of purification stages as the portable BA-1400 and are supplied with a CO monitor.
Breathing Air Purifiers incorporating CO or CO2 reduction
These models are recommended for hazardous
applications that require an uninterrupted breathing
air supply where carbon monoxide may be present.
By means of catalytic conversion, carbon monoxide
(CO) is converted, by oxidisation into breathable
levels of carbon dioxide (CO2).
The catalyst is kept active by maintaining a low
pressure dewpoint prior to the catalytic bed using
an integral desiccant dryer unit. They are used to treat the following:
- Solid Particles
- Water Mists
- Oil Mists
- Water Vapour
- Oil Vapour
- Carbon Monoxide
- Odours & Fumes
- Carbon Dioxide
BA-2010 / BAP-2010
These models are used when the possibility of higher levels of CO are
present, for example when the user must enter a confined space. This
portable unit is designed for field service, being completely pneumatic
in operation and incorporating five purification stages.
High Pressure Breathing Air Purifiers
The Parker domnick hunter range of high pressure breathing air purifiers
can be used with most high pressure compressed air systems up to
350 bar g (5075 psi g).
The HPBA units offer complete protection against carbon monoxide (CO)
and carbon dioxide (CO2). All purifiers in the range are designed for easy
installation, operation and maintenance with simple in-line connections.
These purifiers utilise two main stages of air treatment each with specific
functions: Stage 1 Grade AA - High efficiency coalescing filter; Stage 2 is a
composite cartridge, which reduces water vapour, CO2,oil vapour and
odours. In addition, a catalyst bed for the oxidation of carbon monoxide
(CO) to carbon dioxide (CO2) by catalyitic conversion completes the
Hospital and Medical Air Quality
A medical air supply is regarded as a vital part of every hospital infrastructure and is one of the few medicines that is manufactured onsite.
Compressed air can be used for a wide variety of applications such as anaesthetics, lung ventilation, intensive therapy, pneumatic surgery tools, nebulisors and many more, where the quality of the air is vitally important.
Parker domnick hunter BA-DME and BAM breathing air purifiers provide integrated filtration and adsorption stages to deliver the air quality required for medical applications.
Parker domnick hunter purifiers have been independently tested to the European Pharmacopoeia Medical Air Standard.
The Parker domnick hunter BA-DME and BAM ranges comply with the European Pharmacopoeia medical air standard
BA-DME / BAM
The BA-DME and BAM packages consist of several stages of contaminant removal. Inlet filtration combines to remove bulk water, particles and oil. The use of adsorption materials, namely activated desiccant and carbon removes water vapour and oil vapour/odours respectively. The desiccant material is contained in a pressure swing adsorption dryer that delivers a constant pressure dewpoint of -40°C (-40°F).
Downstream of the desiccant dryer, a catalyst converts carbon monoxide to carbon dioxide by catalytic conversion.
A final dust filter captures any particulates carried over from the adsorption materials.
Selecting the Correct Purifier
Parker domnick hunter breathing air purifiers are designed to reduce the concentration of potential contaminants, identified as hazardous to the human respiratory system to acceptable levels detailed in published International Breathing Air Standards.
Where a potential inhalation hazard exists it is essential that a full assessment be made of the potential risk to the user. The assessment should not only identify the potential risk of contamination to the breathing air supply, but also the level of potential contamination. In the event of being unable to either remove the contamination risk or to control the risk, it is the employers responsibility to introduce measures to ensure that the breathing air supply complies with the required air quality standard. The air quality used in a breathing air system must be controlled under all operating conditions, including the possibility of a plant or process failure.
In addition to conforming with the required compressed air quality it must also be ensured that the delivered air flow rate is at least sufficient to meet the foreseeable needs of the total number of users at their maximum work rate consumption.
Breathing Air Standards
Breathing air standards are published by a number of regional approval bodies. The Parker domnick hunter breathing air purifiers are designed to comply with the following international standards:
- Europe EN12021
- Canada Z180.1-00
- UK BS4275 : 1997
- Australia AS/NZS 1715 : 1994
- USA CGA G7.1-1997; OSHA-Grade D
- New Zealand AS/NZS 1715 : 1994
Typical peak inhalation rates for fit young persons for various work rates are shown below. Higher inhalation rates may be generated by less fit or heavier users or for wearers of heavy personal protective equipment.
- Parker domnick hunter Breathing Air Brochure
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