$350 – $450

BlueAir 403 Editor's Rating :
$450

BlueAir 403

With only 1 filter, this machine is cheaper to maintain than it’s bigger siblings. But negligible amount of carbon in the filter means that it will not help much with odor or smoke problem.

AllerAir 4000 Exec Editor's Rating :
$450

AllerAir 4000 Exec

It doesn’t come with all the convenience of modern air purifiers – things like auto timers, remote control or filter replacement alert, but the performance is so strong, some people simply don’t care. If you don’t mind having an ugly but very powerful machine to clean your air, consider the Exec 4000.

Austin Air Allergy Machine Editor's Rating :
$450

Austin Air Allergy Machine

A simple machine that gets the job done.

And while the other Austin machines are tailored for all round air pollution control, this one focuses more on people who are troubled not only with dust, but also by airborne chemicals and gases.

Austin Healthmate Editor's Rating :
$450

Austin Healthmate

If Austin Air Healthmate Plus is like a sports car with a very powerful turbo engine, this Healthmate is the same sports car, but without the turbo.

And like a racing car, it is meant to deliver performance, not comfort.

So, while the filter is good, it does not have all must-have features of modern air cleaners – things like automatic speed adjustment, digital display, filter replacement alert or a timer.

Alen A350 Editor's Rating :
$399

Alen A350

If your home does not have any serious smokes, mold or fungus problems, seriously consider the A350. It is effective, affordable and with the auto-shutdown feature you don’t have to worry if you dog or kids knocked it down while running around.