Yanng Mini-Pleat HEPA Filter Pre Filters Air Filter for Cleanroom

Product DescriptionG1-G4 pre filterPre-filters of air purifiers and respirators use physical and or chemical processes with fibrous pleated paper, foam, cotton,ionizers, activated charcoal, absorbents, chemicals, catalysts etc. and clean the air to the designed level before it enters toother filters for further purifications. Air purifying equipment with prefilters is used in buildings, transports, public areasand industries. There are wide varieties of technologies and user defined requirements for air prefilters and therefore, there are no standardized regulations about the performance and effectiveness. Many commercial options for air prefilters are available for the use of air filtration units at homes, workplaces, hospitals, hotels, transports etc. and in the respirators used by individuals.A pre-filter is generally an affordable, or washable filter which is utilized in some air purifiers to maximize your main filter'slifespan. We recommend purchasing an air purifier with a pre-filter simply because of the fact that they can save you money over the long run. They are not required, but they extend the life of your main filter, which means your air will be cleaner, for a longer time.Pre-filters are commonly made of materials that are either cheap and disposable or (more commonly) they are made of a more durable and washable material. More often than not, a pre-filter will have a very long lifespan because they are made to be cleaned,rather than thrown out. This is different than most air filters on the market, including HEPA filters. Read on below for information on the different types of pre-filters!Detailed PhotosProduct Parameters Frame material: Aluminum Filter media: Synthetic filter Max.temperature 80°C Max. humidity 80RH   Model NO. Size L*W*H ( inches ) Rated air flow (m³/h) Initial resistance (pa) Efficiency G3/G4  24"x24"x2" 3000     ≤30-45      G3/G4 G3/G4 24"x20"x2" 2500 G3/G4 24"x12"x2" 1500 G3/G4 20"x12"x2" 2000 special size can be according to customer special requirement CertificationsPackaging & ShippingCompany ProfileFAQQ1: Are you really manufacturer or trading company?A: We are indeed filter manufacturer over 10 years experiences and work with many brands for dozen years.Q2:  Can you be our Original Equipment Manufacturer? A:  We'd love to be your OEM or ODM.  Q3: What price term do you accept?A: Normally quote FOB price or CIF, others as per to customer required.Q4: What Payment term you are running?A: We currently do 40% deposit and 60% pay before shipping./* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1