VIAIR 400P Portable Compressor Review: Is This Power Tool Worth It?

VIAIR 400P Portable Compressor Review

A lot of power tool companies build a wide array of competent tools for many different niches and tasks. They don’t specialize in one specific sort of tool, meaning that what they produce is satisfactory, but not the best.

Viair is a company that specializes in one thing and one thing only; air compressors. All of their years of experience and development have gone towards researching and building powerful and unrivaled air compressors.

The Viair 400P portable compressor is no exception. With lots of power, great durability, and of course, excellent portability, this tool is ideal for both casual workers and professional handymen. If you need an affordable and efficient air compressor that you know you can trust because it was manufactured by a specialized and reliable company like Viair, the 400P portable is an excellent choice.

Product Overview

Product: VIAIR 400P Portable Compressor

Cheapest Place to Buy:

Unique Feature: Includes Deluxe Carry Bag

My Rating: 9.5 out of 10



With a size of 13 x 11 x 9.5 inches, the Viair 400P truly is a portable tool. It is quite small for an air compressor, being extremely easy to carry with just one hand.

You’ll have no trouble lifting and maneuvering this air compressor. The small size also makes it very easy to store.


The Viair 400P weighs approximately eight and a half pounds. Naturally, this is far lighter than nearly any other air compressor.

Even other light models weigh nearly thirty pounds, more than three times the weight of the 400P. If portability is very high on the list of features you care about, you will be hard pressed to find an air compressor that is as lightweight as this one.

VIAIR 400P Portable Compressor Review

Power Type

The Viair 400P is a corded electric power tool. It does not operate on batteries, which is good since batteries and battery chargers tend to be very expensive when it comes to the lifetime cost of a tool.

The compressor uses twelve volts and has one hundred and fifty PSI max working pressure, though the engine must be running during use.

The only real drawback to a corded power tool is that cords occasionally make the tool more difficult to use, but this shouldn’t be much of an issue for an air compressor.

Special Features

The Viair 400P has some special features that make it a bit easier and more efficient to use. For one, it has a twenty five foot air hose and stainless steel valves.

It has a high performance PTFE piston ring, a gearless direct drive motor, and an automatic reset thermal overload protector. It has dual forty amp battery clamps, a dual stage metal air filter, and a special carry bag.

Ultimately, this air compressor possesses a great deal of features that make it quite powerful and efficient.

VIAIR 400P Portable Compressor Review


The Viair 400P is at a relatively affordable price of approximately $160.00. This isn’t anything extraordinary, but it isn’t overly expensive.

You could find air compressors both more expensive and cheaper than this one, but of course this particular air compressor has many benefits thanks to its cost. It is definitely one of the most lightweight and portable compressors on the market.

For a high quality tool made by a specialized manufacturer, this deal is quite good.


The viair 400P is an excellent tool. Having been made by a company that specializes in air compressors, you won’t find too many more reliable air compressors out there.

This one is made of durable material, has a very long hose, and has enough PSI output power to take care of most jobs. And of course, it comes with a carry bag, so it even has extra security.

The 400P is tough, powerful, and lightweight, and it comes at an affordable cost.

Helpful Hints

While power tools are always designed to be as safe as possible, all automated power tools still have great potential to be dangerous if you are not careful.

With air compressors, you should be careful about where they are positioned during use. Always try to keep compressors away from things that may obstruct airflow or potentially start a fire. And of course, keep the air compressor stored in a proper area that won’t cause damage.

Bottom Line

If you need a powerful air compressor that is also durable and portable, you can’t do much better than the VIAIR 400P Portable Compressor.

Because it is made of very tough materials, it will survive accidents and possible damage, which is important since you’ll be carrying it around with its extremely low weight. Speaking of which, the weight is about as low as you will ever find, as even other ‘light’ air compressors weigh dozens of pounds.

It’s also quite affordable and has a great deal of power for an air compressor that is so small and light. If you need a light and powerful one, you can’t do much better than the 400P.


  • Is lighter than almost any other air compressor, making it more portable than nearly any other compressor out there
  • Is still very powerful and durable considering its small size and weight, and it has quite a high damage tolerance and versatility
  • Made by a specialized company that focuses on air compressors, you can rely on the 400P to be an excellent quality tool
  • It is quite affordable for such a specialized tool that still possesses a great deal of durability and power


  • It does have good power for its size, but that size still limits its maximum output to 150 PSI

Product Summary

Product: VIAIR 400P Portable Compressor

Cheapest Place to Buy:

Unique Feature: Includes Deluxe Carry Bag

My Rating: 9.5 out of 10

Click here if you want to learn more about VIAIR 400P Portable Compressor.

If you have more questions and concerns about this power tool, feel free to comment it below.

We would also be glad to hear some of your experiences about the quality and performance of this product.

Best Regards,

John Rico

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