The Austin Air Healthmate HM-400 HEPA Air Purifier produces fresh, breathable, clean air with the simple click of a button. The Healthmate uses a four-stage filter to remove everything larger than 0.3 microns from the air inside your house or room. The intake draws from 360 degrees around the air purifiers, while the outflow is from a top side vent. In stage one, a large particle pre-filter removes things easily seen by the naked eye. Dust particles, hair, and pet dander are removed in this stage. The air then enters stage two, where a medium size pre-filter removes small to medium size particles. This includes molds, spores, and pollen. Now, it is clean enough to enter the third stage, where it will flow through a HEPA air filter. This filtration uses approximately 15 pounds of activated carbon and zeolite mated together to remove chemicals, gasses, and odors. The last stage has HEPA or high-efficiency particulate air filters and removes most items larger than 3/10 of a micron after air has passed through the carbon/zeolite filter. If you or a family member suffers from an allergy or asthma, this machine can improve your general health by improving air quality. It can also help anyone particularly sensitive to the presence of smoke. This device is designed for 24-hour operation and constant use to purify any room. This type of unit has three speed choices for customized airflow and can also be used to produce white noise to improve your sleeping or resting environment. The Austin Healthmate is energy-efficient, so you’ll continue to save on your electricity bill as you protect your health. These purifying health accessories have four rolling casters to allow for ease of movement. Use it in your house during the day for your allergy and in your bedroom at night for a refreshing sleep. The recommended coverage of 313 square feet allows for six exchanges to take place every hour. The maximum coverage is 938 square feet, and this allows for two exchanges per hour. For complete control over your device, the settings are operated manually. It is all steel with a standard powder coating paint finish. It has a weight of 45 pounds. The Austin Healthmate is an excellent choice for a durable, reliable air cleaner. The Austin Healthmate HM-400 is a great option for a purifier to assist with your overall health. These cleaners are low maintenance and easy to clean. The recommended maintenance for these air purifiers is simply vacuuming the pre-filters every three months. Regular cleaning will maintain the efficiency of the device. This can be done without disassembling the machine. The HEPA filter produces medical-grade filtration. The first three filters simply remove the larger particulates to get the environment clean enough for the HEPA filter. Replacement of the carbon filters is easy and takes just a few minutes, and a regular check of your system will extend its working life.