With the two terms used almost interchangeably, it's important to understand the key differences between negative air machines and air scrubbers, so that you can make an informed decision about improving the air quality at your business or facility. Both units utilize a series of filters, most notably HEPA filters, to reduce the air pollution in the area being treated. However, negative air machines work by filtering and ventilating contaminated air outside of an enclosed space. By creating a system where the air flows out faster than it can enter a space, the negative air machine creates a vacuum in the area. This prevents contaminated air from leaving a room via cracks and crevices, instead forcing it to leave through the machine where it will be filtered. Any air moving through these crevices will be entering the room, not leaving it.
An air scrubber, on the other hand, filters air just the same as a negative air machine would, except that it can be placed inside a room without using any ducting. The air scrubber will recirculate filtered air, reducing air contaminants over time. While air scrubbers are designed to be used in this manner, you can also attach ducts to air scrubbers and use them as negative air machines. These similarities are why the two terms are used interchangeably, although the two machines have some legitimate differences that determine their common uses. Nevertheless, Mobile Air & Power Rentals provides both types of equipment for your rental air filtration needs.