As a leading breathing air filters for compressors supplier in China, Filson can provide you high quality products. When the oxygen concentration is low(less than 17%) or the ambient air is not suitable for air breathing, Filson breathing air filters for compressors can be used for purifying air.
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Filson breathing air filters for compressors convert the compressed air into the certified breathing air. Ideally, air should be of high quality as it is an important factor for various industries and breathing air. The air is purified on a seven-step filtration basis.
The advantage of Filson breathing air filters for compressors is that it is a compact structure providing reliable breathing air. If you are prone to allergies, you should use Filson breathing air filters for compressors to guarantee high quality breathing air.
If you have any needs for Filson breathing air filters for compressors, we are always here to support you a suitable one. Send us your inquiry!
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There is a lot you must know before buying breathing air filters.
These include the design, working principle, application, classification, efficiency, installation process, quality standards, and maintenance, just to mention a few.
All this information is in this guide.
So, if you want to be an expert and learn how to skyrocket your breathing air filtration systems business, read this guide.
A breathing air filter is a piece of equipment or device which has a porous filter material for removing contaminants.
These contaminants include mold spores, bacteria, solid particles, moisture, oil vapor, and odor from breathing air.
You can fit them in application systems where the provision of quality air is necessary.
These applications include factories, ventilation of houses, and engines.
Breathing air filters
When contaminated atmospheric or compressed air enters the filter, larger solid particles that cannot be suspended in air hit and stick to them.
This process is called impaction.
The filter removes the medium size particles through interception.
Here, the particles float in the air through a turbulent flow.
The smaller diameter of the filter restrains the particles which have larger diameters.
Also, the filter cleans the remaining small particulate contaminants through diffusion.
Because the particles are tiny, they move randomly, hitting air molecules which slow them down and stick on the filter medium
The air continues to a Coalescing filter, which has filter elements with smaller sieve diameter.
In fact, the filter elements collect moisture and oil droplets when the air passes through the filter.
The droplets are amalgamate into large particles which drain into the filter housing.
This air continues in adsorption filters fitted with activated charcoal.
Oil vapor, lubricants, and odor are removed at this stage through when they bind to the surface of the activated charcoal.
The resulting air will be fresh and free form major contaminants
This filter removes different types of aerosols, inert particles, and oil vapors in specific areas that produce these contaminants in a plant.
They also provide fresh air for workers at the same time
The shelf life of most breathing air filters ranges between two and five years when packed in original containers.
The durability of your filters is affected by different factors.
They include the:
You should carry out routine checks to determine the conditions of your filters.
This is even critical when the application doesn’t have a differential air pressure indicator.
You can also install a differential pressure indicator that will alert you when the air filters you are using are clogged and require replacement.
Generally, you will replace the air filters every three, six, or twelve months depending on the type of breathing air filter you are using.
Under intense operational conditions, you will replace the filters every month.
There are different types of breathing air filters that remove different kinds of contaminants.
They include:
You can use particulate air filters when you want to get rid of solid contaminants like dust from the breathing air.
These filter elements are meshed and physically trap the solid contaminants as the air passes through the filter medium.
These filters use three different methods while sieving out the solid contaminants.
They include:
Air particulate filter
They are filtered out when they pass through filter elements with smaller sieve diameter.
The random movement and continuous coalition with air molecules slow the particles down.
The filter media then intercepts and retain the particles.
Coalescing filter
You can use these filters for cleaning out aerosols, moisture, and oil from the system
They are made of course matt with tiny fibers that can trap and amalgamate small oil and water droplets into large drops.
The large drops then flow down the filter through gravity and collect in the housing bowl.
You can remove the liquid through a drain fitted at the lower parts of the housing.
These filters can also remove particulate contaminants.
These filters will easily trap particles as small as 0.3 to 0.6 microns. Activated Carbon Filters/Adsorbent Filters
Activated carbon air filter
You will require these filters when you want to remove odor and oil vapor from the breathing air.
You should ensure to install activated carbon air filters after particulate and coalescence filters as they cannot remove solid and liquid contaminants from the air.
They adsorb vapor using activated charcoal or chemicals with similar characteristics.
They remove vapor when it bonds with the surface of the adsorbent charcoal.
Activated charcoal has explicitly an extended surface area and a very high affinity for oil vapor.
With time, the surface of charcoal gets saturated and demands replacement.
You can install a particulate filter after an adsorbent filter using charcoal as dust from this material will be carried into the air stream and the system.
The cost of air filters will depend on the type of material used to make the housings and the filter elements.
Price is affected by the kind of operations.
Generally, you will pay more for activated air filters than for pleated or particulate filters.
While you will get car filters for about $1 to $30 per piece, activated carbon filters can cost between $ 200 and $ 300.
The prices of the products will greatly vary depending on the type of product.
You can always visit the website of breathing air filter manufactures to confirm the costs and budget appropriately.
Different countries have different sets of provisions and requirements that have to be met by the breathing air filters for various applications.
Internationally, ISO series provide for global standardization procedures that should be followed by manufacturers of breathing air filters.
The first part of ISO gives provisions for testing of coalescence filters performance in the removal of oil aerosols.
Part two of the standard gives procedures on how to quantify the amount of vapor removed by adsorption filters.
Likewise, part three of the ISO standards give instructions on testing particulate filters performance in the decontamination of solid particles.
The filters will be rated depending on the test results.
The following factors will affect the effectiveness of your breathing air filter:
The components of a breathing air filter vary depending on the application of the breathing air filters.
Standard compressed breathing air filter comprises;
Parts of breathing air filters
It also has a bowl that collects liquid contaminants from the elements.
Drains can be automatic or manual.
Automatic drains will release automatically when the liquid in the bowl has reached one-third of its capacity.
Material selection for filter housing varies depending on your system application.
Generally, in-line air filters have housing and filter elements, while breathing air filters for the ventilation system have casing and filter elements.
For in-line air filters, you can make the housing from carbon steel, cast aluminum, zinc, iron, or steel (either SS 316 grade or SS 304 grade).
If your application system uses casings, then you can select from casing made from plastics (either from high-quality polystyrene, polyethylene, polyvinyl chloride, or polypropylene).
In the case of filter elements, you can choose the following materials:
Breathing air filter element and housing
They are the most widely used type of filter medium.
Generally, you can use them to filter out large particles.
This filter medium has several stocking of layers of fiberglass fibers on top of each other.
The pile is reinforced with a steel frame to hold them together.
This filter medium consists of a thin sheet of cotton, paper, or polyester, folded to form pleats.
They have higher filtration ability compared to fiberglass because of the high airflow resistance they offer.
You can use this filter to clean out of volatile organic compounds such as odor and oil vapor.
Carbon sources are heated in the absence of oxygen at very high temperatures to produce this material.
This process is known as destructive distillation/pyrolysis.
The heating separates pure carbon form other types of carbon.
The carbon is activated through steam heating at 800°C.
This process results in millions of cracks that are about 0.002 microns on the surface of activated carbon.
These cracks provide an extensive surface area for the adsorption of organic compounds.
HEPA Filters
You can use these materials to make a filter medium for HEPA filters.
If you want to learn more, please visit our website inline compressed air filter.
Usually, you can make the fibers from fine glass threads that do not exceed 1 micron in diameter.
They are then compressed and bound together into a filter mat using acrylic binders.
Air fills up most of the matt due to their microscopic nature.
You can use these filter media to filter particles with up to 0.3-micron diameters, given that their openings are usually tiny, that is, less than 0.5 microns.
When installing a breathing air filter, you should ensure that you seal all loopholes against unfiltered bypass air.
Follow these steps in installing breathing air filters:
Yes, many manufactures offer warranty for breathing air filters and accompanying accessories for a period ranging from three months to five years.
The warranty will depend on the type, quality, and cost of the air filter. Generally, expensive filters tend to have a more extended period of warranty cover.
However, most manufacturers will not cover the cost of repair for products that spoil from normal wear and tear, misuse, neglect, ignoring instructions, modifications.
Here are some of the most outstanding benefits that you are likely to reap from using breathing air filters.
You can determine the effectiveness of a breathing air filter through dust holding capacity and efficiency as described below:
This test is specifically more critical in determining how durable your filter will last.
This technique relies on measuring the total weight of contaminants the filter retains throughout its operational life cycle.
Air filters that can retain the highest amount of contaminants will give you prolonged and effective services compared to those that hold fewer particles.
You can conduct a simple efficacy test by measuring the percentage of contaminants that are captured by the filter and those that go through unfiltered.
A filter that allows passage of the least amount of contaminants is considered the most effective.
Efficiency test includes:
You will conduct this test if you want to measure how effective your filters can retain fine particles between 0.3 and 0.6 microns.
Feed-in the atmospheric air through the filter and establishing its efficacy in reducing surface stain.
You will use this test for particulate filters when you want to determine their efficacy in retaining large and heavy particles.
Here, you will pass an artificial powder through the filter and measure the weight of dust captured relative that fed in.
This test is standard for low-efficiency filters.
You will conduct this test for high efficiency particulate air (HEPA) and ultra-low penetration air (ULPA) filters
Disperse oil aerosols through the filter medium from the upstream flow.
Using a calibrated photometer, measure the amount of particles that pass through the filter downstream or in the outlets.
If the filters are capable of removing up to 99.97% of molecules and particles measuring 0.3 microns, then they are considered ‘true HEPA’ filters.
However, you can still categorize a filter that does not meet these standards but still give good results as ‘near HEPA’ filters
This test was founded by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) in .
This method tests the efficiency of HEPA filters’ ability to filter out different sizes of particles ranging from 0.3 to 10 microns.
This test classifies filters into grades ranging from 1 to 16.
Accordingly, the highest categories of filters also correspond higher value of particles captured on each pass.
You will use grades 1 to 4 filters for removing contaminants like carpet and textile fibers and pollen dust that have a diameter greater than 10 microns.
Grades 5 to 8 filter particles whose diameter range between 3 and 10 microns such as mold spores, fabric protectors, etc.
You can use grades one to 12 filters for contaminants like milled flour and auto emission particles that do have between 1 to 3 microns’ diameter.
Grades 13 to 16 filters have the smallest mesh and filter unto 95% of particles that pass through them.
You can use them to filter out particles that have diameters ranging from 0.3 to 1 microns and higher such as bacteria, smoke, and insecticide dust.
Modes of filtration
You should periodically examine the breathing air quality to ascertain that your filters are working as expected.
ISO Series and ISO series give provision to follow when testing the quality of breathing air.
However, these standards are not legally binding.
Therefore, individual countries also have developed their rules which regulate the quality of air within their territory.
It is therefore empirical that you test whether your controls and filters have been meeting these standards.
You can have your checks as part of risk assessment tests.
Ensure that you carry out tests every three months for low pressure breathing air system.
However, you will have to shorten the time for high-pressure filters.
You can do air quality tests at the time of installation, at 50% of life usage depending on hours under operation.
Any other test will be determined on the intensity of use and should not go beyond three months.
In cases where a mobile air compressor is supplying the breathing air, ensure to carry out air quality test every time you move it.
You can choose an appropriate and more befitting efficient and straightforward test method among the following:
Contaminated breathing can present health, legal, and financial problems to the employee and the employer.
These include:
It is a group of international standards provided by the ISO series. They relate to the allowable amount of pollutants in the air.
These primary standards principle is to protect human health.
The world health organization has provided standards that should act as a guideline for different countries who may choose to adopt or not to adopt.
ISO series consists of nine parts.
The first section classifies air quality levels and outlines types of different contaminants.
This section ranks air quality from a class of 0 to 9, with 0 being the most hazardous and nine the least.
The parts 2 to 9 give instructions and detailed procedures to follow to ensure an accurate measure of all contaminants of the breathing air consumed by the end-user.
Before your place your order, you need to ensure that the breathing air filter you are purchasing will meet your needs.
You should consider the following:
Breathing air filter cartridge
You need to know how you are going to use the air filter.
Do you want filters for a house ventilation system, in-line air filtration in compressed air for scuba diving, or manufacturing plants?
You will need to get an air filter that will correctly match the piping systems of your applications.
You should also consider the working pressure, temperatures, and flow rates of your system application.
It is specifically essential because these factors profoundly affect the durability of your breathing air filters.
Rating is more so important when you target to filter out specific contaminants.
Are you interested in protecting sensitive components of your system or provision sweet-smelling breathing air in an area that atmospheric odor is compromised?
Therefore, you will need a highly rated filter for either of the above functions.
As with all other aspects, economics is of at most necessity, especially with the type and sensitivity of your operations.
You will have to match the best kind of filter you can get for your system operations with your budget allocation.
Yes, breathing air filters have a lot of impact on people with underlying respiratory conditions such as asthma and allergies.
These filters will remove contaminants from the air free of airborne irritants.
This will provide clean and fresh air that will reduce respiratory attacks that can be caused by unfiltered air.
There are numerous limitations classified based on filter types and their use.
Some of these limitations include:
You should consider importing air filters from China because they make quality products at relatively low prices.
Many manufacturers in China have state of the art facilities, and their employees are master designers.
Additionally, the majority of these manufactures are ISO certified, an assurance of premium products.
Additionally, you are always guaranteed competitive prices.
You should always conduct routine maintenance operations to ensure that your breathing air filters are providing a high quality of breathing air.
While servicing the filters, take care to gently remove the used filters to avoid dusting and contamination of the environment.
You should also take care not to inhale the dust.
Using the drains and clean the housing with a piece of cloth soaked in mild soapy water to remove dust and other particles.
For reusable air filter elements, you can soak them in water then thoroughly scrub using a mixture of vinegar and water to help decontaminate the bacteria.
Set the filters to dry out before reinstallation in the system.
In case you are installing new filters, make sure that you match the arrows on the filters to airflow directions in the system.
If your filters are using automatic drains, it is vital to check their integrity.
You should calibrate your monitors and differential pressure gauges every month, or in case you have questionable concerns with your reading.
Activated carbon air filter
The answer is yes, and no.
There are some filter elements that you can clean while others will be damaged when you try to clean.
Generally, you cannot clean all air filters.
Make sure to follow the instructions and recommendations of the manufacturer on how to clean the air filters.
You can soak the filters in warm soapy water and brush the particles off. You can also use a vacuum cleaner or compressed air for removing dust particles.
You don’t need to wash or vacuum clean carbon filters since they don’t retain any solid particles.
You can just expose this type of filters directly to the sunlight for 2 to 4 hours.
However, even with cleaning, the performance of the air filters will still be below optimum.
It is thus advisable that you acquire new filters if you are working with susceptible operations.
We hope you found all the useful information about breathing air filters.
Whether you are looking for standard or custom breathing air filters; FilSon Filters provides high quality filtration accessories.
For more information, please visit hydraulic driven air compressors.