SpaceGard Air Filters from AprilAir for cleaner whole-house air
The Space Gard High Efficiency Air Cleaner from Aprilair (sometimes misspelled Space Guard) is a complete air cleaning system. It effectively cleans up air pollutants such as pollen, dust, dander, pet hair, dust mites and tobacco smoke. The cleaner was first released in 1973 and ever since has been reputed to be a silent worker, with relatively low maintenance and mostly inexpensive.

Space Gard 201 Uses HEPA Technology
The Space-Gard 201 filter uses a HEPA-type filtering science (highly efficient particulate air filter) that is said to be 99% effective against dust, pollen, mold and bacteria larger than five microns. For particles smaller than that size a 95% effective rate is quoted. With HEPA, these particles are trapped by the Space Gard 201's fibers by diffusion, interception or impaction. The SpaceGard air cleaner claims to be an improvement over regular HEPA science, and is said to actually improve over time and with more use.

SpaceGard cleaners are classified as mechanical filters, and usually associated with Space Gard furnace type filters. Newer Space-Gard models such as the Space Gard 2200, the Space Gard 2400, and the Space Gard 401 are adaptable to upflow and a horizontal duct configuration. SpaceGuard air cleaners are ideal for server room air circulation because they are installed in ducts or furnaces. These types of air cleaners install onto the system of an air conditioner or heater, they are not portable like many other types of cleaners or a car air purifier.

When comparing “living air purifiers” (products by Ecoquest which is a spin off of Alpine) to Space-Gard models you notice many differences. While Ecoquest is known for its quality and variety of air purifying products, their models are electronically and ionically based. For one thing, Space-Gard cleaners have no moving parts and thus do not have all the maintenance of living air purifiers. SpaceGards do not use any large amounts of electricity nor are they noisy, whereas other types of cleaners are notorious for both. Space-Gards come with a limited lifetime warranty.

One of the most effective and most popular furnace air filters on the market is the Space-Gard whole house high efficiency furnace air filter, also called the AprilAire high efficiency air cleaner. This filter uses a highly efficient filter media that removes dust, dust mites, mold spores, pet dander, pollen, bacteria, viruses, smoke and other contaminants in the home.

The filter is also designed to become more efficient with use. It requires replacement only once per year as opposed to monthly as with most 1" paper or fiberglass filters. With its deep pleated filtration media, it provides 72 square feet of filtering media, 30 times the filtration area of standard 1" filters.