The air that living creatures are breathing contains different contaminants from air borne particles to water vapor. In air compressors, the compression process is the reason why these contaminants become even more concentrated. By having air compressors that are much older, you can also expect that there will be more contamination with oil carryover effects. Simply put, with the compression process, you can expect that these airborne particles and water vapor will worsen contaminating the air that you breathe using your own air compressors. Once you think that the air that you are breathing is both humid and dusty, then more so on the part of your air compressors. You are introducing more damage to your air compressor if you have water vapor. Bear in mind what functions your air compressor has. The main reason to you have these air compressors is for your air accessories and tools to be kept in good shape. Your compressors are not effective in themselves unless of course they have powered the right air tools. And yet, your air tools could go into a lot of trouble if the compressors will be pumping out dirty air to them. If you have a favorite impact wrench, it will no longer have the same power as it once had because of this. Your air tools will not be able to function as they did before if the air that is being pumped into them are both dirty and wet.
The air compressors of today have quite a handful of features for them to function their very best. Both water separators and aftercoolers are then used to ensure that no excess moisture is present. For certain applications, this may be just something you need. When you will be using them at much harsher conditions and tools that require much cleaner air, then you should be using some air compressor filters.
If you need some air compressor filters, do know that you can choose from several of them. The makers of your air compressor filters matter when it comes to the functions that you can expect from them. When it comes to these filters, you can observe that they have these indicators for differential pressures. You can know how much longer your filter element has left in terms of lifespan when you have this particular indicator. Using some oleophobic filter media reduces the levels of water and oil. The operating costs will be made much lower using this while the pressure drops are decreased. Using regular filter media will just soak this water and oil and will increase your pressure drop. You should avoid this kind of media at all cost as this will just increase your costs while lowering down the function of your air compressor filters.