Our offices are closed from the 21st December until 6th January.

What Does Air Treatment Mean?

It means CLEAN AIR!

When speaking of air compressors, compressed air treatment is a process that dehumidifies and cleans air before entering the compressor. Most commonly, this process involves air filters and an air dryer. An effective compressed air treatment system lowers the “dew point” of the air and takes out particles that may negatively harm the air compressor.

Protecting your investment is a smart decision with your compressed air system. Not only does compressed air treatment allow your system to run more efficiently, but it also prolongs the life of the system by reducing rust and corrosion that can be caused by wet, dirty air. Because the air being used by the air compressor is clean, it can run faster and doesn’t contain particles that can corrode the compressor over time. Also, air that has undergone compressed air treatment is dry, meaning it does not promote the growth of rust like wet or humid air does.

What Types of Air Treatment Are Out There?

Explore the list below of different air treatment solutions. In-Line Filters: primarily to remove rust, scale, dirt, and other solid particles. Particulate filters are very versatile and can be used with either lubricated or non-lubricated compressors. Often used to filter before and after the air enters & exits the compressor. Dryer: Removes moisture from compressed air. Available in different types based on your application and needs. Air/Oil separator: A device in the compressor that separates oil from the air/oil mixture compressed in the air-end. Condensate Drains: Collect and discharge liquids from after-coolers, separators, receivers, dryers, filters, and drip legs.

Browse Air Treatment products here:


Chicago Pneumatic Line Filters 720 - 40,500 l/min

Chicago Pneumatic Line Filters 720 - 40,500 l/min

Product Enquiry Product Enquiry
Pneumatech AC Series - Cycling Dryers

Pneumatech AC Series - Cycling Dryers

Product Enquiry Product Enquiry
Pneumatech AD Series - Non-Cycling Refrigeration Dryers

Pneumatech AD Series - Non-Cycling Refrigeration Dryers

Product Enquiry Product Enquiry

Do you have an idea for our #expertcorner? Let us know!

Who we are and how Ash Air can help your business!

Ash Air has been around in New Zealand since 1979, and we’ve grown into a nationwide company with international support and a reputation for quality and reliability.We look after all things compressed air for your business!

  • Reciprocating, Screw, air compressors
  • Vacuum pumps
  • Nitrogen
  • An extensive line of air treatment components

Ash Air's range of Chicago Pneumatic, Alup, Pneumatech, and Quincy compressors are used extensively around the world in industries ranging from oil and gas to food, automotive and farming, and we bring you these world class compressors here in the land of the long white cloud.Our technicians are compressed air equipment experts and are dedicated to addressing customer needs. Supported by a 13 locations nationwide, Ash Air offers one of the widest selections of compressed air equipment and parts available today in New Zealand.

Reliability and Efficiency

With Ash Air compressors, you can count on reliability and high performance for even the most demanding applications. We focus our efforts on the following:

  • Increasing uptime
  • Reducing unexpected repairs
  • Reducing energy consumption
  • Improving the cleanliness of compressed air


Talk to the team today:  CONTACT US CONTACT US

Read more from our #expertcorner


Just like any other equipment, a compressed air installation also requires the necessary maintenance work during its entire lifespan. Even though maintenance costs are only about 5 to 10% of a machine's annual operating costs, failure to budget for maintenance can have potentially disastrous consequences.


The air dyer is one of the most ignored cooler in the system. A dirty condenser will cause water in the lines, or worse it will cause complete dryer failure.


Using nitrogen is not about fully replacing CO2, but it can reduce their consumption of CO2 by close to 70%. Using nitrogen is about sustainability. Creating your own nitrogen is easy and will reduce the use of a greenhouse gas, which is better for the environment. It will also save you money as early as month one adding that savings to your bottom line.


A question that is occasionally asked by our customers to Ash Air is 'what is the cost of compressed air?'  This article looks at the product costs involved with compressed air, as well as minimising the energy cost of compressors and cost allocation. When looking at these factors, we need to realise what causes dropped efficiency of your compressor, leading to increased costs of compressed air.


You may have great fall protection measures in place to keep employees safe when working at height, but what about their co-workers below? Dropped tools and other falling objects are a major hazard – and one that isn’t always fully addressed. 


Providing a safe working environment for operators is essential, especially when using pneumatic tools and compressed air. If there is a failure in the air network and the hose is not adequately clamped, the resulting whiplash could be devastating. Failure to follow best practice can result in injuries, associated production downtime and decreased productivity.


A common questions asked is why do I need an air dryer for my compressor? Typically, air compressors produce water, and although the water can be drained, there can still be aerosol and vapour droplets that are present. This is because water cannoet be compressed. Water can damage your compressor by corroding the valves, pipes and machinery controls, which will cost you time and money to resolve. In the long run, the cost of a new compressor is a small price to pay compared to the loss of production that could potentially arise due to water damage in your compressor.






Air compressors can fail for an assortment of different reasons: Normal wear and tear, lifespan and age of the unit, poor maintenance, power surge, install issues are just a few the come to mind. Check out this blog to find out our top 7 tips to ensure your compressor is looked after! 


That cold, rainy, and in some places icey New Zealand winter is upon us, and with the following air compressor tips, your air system will be prepared with the preferred temperatures, despite the weather outside. Regardless of whether or not it actually snows or freezes up where you live, most winterisation service recommendations are also basic, solid maintenance procedures that will help extend the life and operational efficiencies of air compressors regardless of whether you live in Queenstown or Northland.


If you're wondering what an air compressor actually is, you've come to the right place. Simply, air compressors convert power in to air that is pressurised which is then used to power air tools such as spray guns. Air compressors are used in a wide range of applications, so naturally if you want one that will be designed for spray painting your vehicle, you want a compressor specifically made for spray guns! This way your compressor will be able to provide the right amount of power to perform the job.


Compressed air plays a fundamental role in industrial activities. Depending on the type of application, the energy cost of producing compressed air can be very high. Below are some tips to save on you compressor bill.


Air Compressors are essential tools in a variety of industrial settings. No matter what industry you are in having a reliable air compressor can be a crucial part of getting the job done efficiently. However, like an investment, air compressors require upkeep and maintenance, and eventually will need to be upgraded. But how do you know when it’s time to upgrade your air compressor? Here are some things you need to consider.


When it comes to laser cutting and other industrial processes, the choice of assist gas is crucial in achieving optimal results. Nitrogen and oxygen are commonly utilized as assist gases, each with its own unique properties and applications. Understanding the characteristics of both gases, will help you to make an informed decision to ensure precision, efficiency, and cost-effectiveness in your operations.