OIL-X EVOLUTION Compressed Air Filter (For Pressures up to 20 bar g) | Filters, Separators and Purifiers High efficiency coalescing and dust removal filters for the removal of water and oil aerosols, atmospheric dirt and solid particles, rust, pipe scale and micro-organisms from compressed air. The Parker domnick hunter OIL-X EVOLUTION high efficiency compressed air filter range includes coalescing filter grades (AO & AA) for the removal of water and oil aerosols, solid particulates and micro-organisms and dust filter grades (AR & ARR) for the removal of dry particulate and micro-organisms. The die-cast compressed air filters have been designed to meet the air quality requirements of all editions of ISO8573-1, and are validated in accordance with the requirements of ISO12500-1.The filter housing incorporate a number of patented design features to minimise differential pressure. The OIL-X EVOLUTION range provides a filter housing and element combination where the differential pressure starts low and stays low to maximise energy savings without compromising air quality, resulting in the lowest lifetime costs of any compressed air filter on the market.

Grade AO and AA coalescing filters are fitted with energy efficient, zero air loss float drains as standard for the removal of coalesced liquids. Grade AR and AAR dust removal filters are fitted with manual drains.Features:• 10 year housing guarantee• Deep pleated filtration media• Specialist media treatment• Compact and lightweight• Full corrosion protection• Choice of drainsBenefits:• Low Lifetime Cost• Highest air quality• Lowest power consumption• Lowest operational differential pressure• Lowest CO2 emissionsFor more information or a detailed discussion about your specific requirements please contact Parker or an authorised Parker distributor.air purifier in australia Select attributes to see if your product is available for online purchase.personal air purifier australiaShare this page with others:home air purifier for dust

The Minimum Efficiency Reporting Value, also known simply as MERV, measures the performance of air purifiers, specifically large purifiers intended to clean an entire house or building. Large, whole-house purifiers are not evaluated in the same manner used to measure the effectiveness of small, portable air cleaners, which are sometimes given Clean Air Delivery Ratings (CADR) instead. Whole house and building air purifiers usually receive MERV ratings of between 1 and 16, though the upper limit is sometimes extended to 20. Common residential air purification systems tend to fall within a narrower range. Higher numbers translate to more effective air filtration. According to the online encyclopedia Wikipedia, "The scale is designed to represent the worst case performance of a filter when dealing with particles in the range of 0.3 to 10 micrometers." Particle Size Removal Efficiency Particle Size and Typical Contaminant Typical Air Filter Type < 0.3 μm Virus (un attached) Carbon Dust Sea Salt All combustion smoke - - - - 0.3-1 μm Bag Filters Box filters - 1-3 μm Pleated filters Box Filters - - 9 - 8 - - 3-10 μm Pleated filters Cartridge filters Throwaway 7 - - 6 - - 5 - - 4 - - > 10 μm

(Table Data Source - United States Environmental Protection Agency) The MERV rating system was initially created by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (or ASHRAE for short) in 1987. However, this evaluation system was based on older methods that date back to 1968, when ASHRAE issued "Standard 52," the first formal testing standard for filters. According to an article by engineer Donald Newell, the purpose of the Standard has not changed since its early days, and is designed to determine the following attributes of air filters: MERV ratings measure only the first quality, however. The MERV rating of an air cleaner is determined according to updated standards set by the ANSI/ASHRAE Standard 52.2-1999. Air cleaners are given MERV ratings based on the results of a series of tests. Simply put, the process works as follows: After this is done, the process is repeated five more times, so that there are ultimately six measurements for each of the twelve categories.

The MERV number is assigned based on the worst result. Hence the "minimum" in "Minimum Efficiency Reporting Value."Of particular interest is the column detailing what types of pollutants are filtered out at each level. Precise technical details will be less important to the average customer than an answer to the question, "What MERV ratings are acceptable for my home?" The United States Environmental Protection Agency provides some information on this matter. "Medium efficiency filters with a MERV of 5 to 13," it states, "are reasonably efficient at removing small to large airborne particles. Filters with a MERV between 7 and 13 are likely to be nearly as effective as true HEPA filters at controlling most airborne indoor particles." Furthermore, the EPA adds that "medium efficiency air filters are generally less expensive than HEPA filters, and allow quieter HVAC fan operation and higher airflow rates than HEPA filters since they have less airflow resistance." HEPA (High Efficiency Particulate Air) filters are the top-of-the-line air filters.

Most homes are not capable of having whole-house HEPA filtration systems installed without extensive modification. Therefore, the EPA's recommendation of filters with a MERV rating from 7 to 13 is something that potential customers should keep in mind. The National Air Filtration Association gives a roughly similar answer. The highest range it recommends for residential systems is 9-12; higher numbers are said to be suited for hospitals or commercial buildings rather than homes. An air cleaner's MERV rating is based on its ability to filter out undesirable particles from the air. Not all indoor air pollution is particle-based, however. Gasses contribute significantly to pollution as well. The ability of an air purifier to remove particles is not predicative of its ability to remove gasses, so the MERV rating is not helpful in this regard. Newell's article cautions that air filters given the ASHRAE test "are likely to perform worse than predicted because of various installation conditions."