Airpure sells air purifiers, filters, air cleaners and portable air conditioners. Serving the USA & Canada.

Air purifiers remove very small particles.

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Particle Sizes



 Air purifiers and particle sizes
 Common Items and their respective particle sizes:
1" Postage Stamp 25,400 microns
Eye of a Needle 1,230 microns
Human Hair 40 to 300 microns
Beach Sand 100 to 2000 microns
Fertilizer 10 to 1000 microns
Pollens 10 to 1000 microns
Mold Spores 10 to 30 microns
Coal Dust 1 to 100 microns
Oil Smoke 0.03 to 1 micron
Tobacco Smoke 0.01 to 1 microns
Typical Atmospheric Dust 0.001 to 30 microns

Did You Know:

  • Visible particles constitute only about 10% of indoor air!
  • Particle visibility depends on the eye itself. In other words, light intensity and quality, background and particle type.
  • Particles on furniture and those in a shaft of light are approximately 50 microns or larger.
  • It may be possible to see particles as small as 10 microns under favorable conditions.
  • The majority of harmful particles are 3 microns or less in size.
  • Particles of 1 micron or less adhere to surfaces by molecular adhesion. Scrubbing is generally the only way to remove them.
  • Larger particles tend to settle out of the atmosphere due to weight.
  • Smaller, "respirable" particles remain virtually suspended in the air until breathed in.
  • Approximately 98-99% of all particles by count are in the size range of 5 microns or less. These particles tend to remain in suspension or settle out so slowly that only quality air cleaners such as LakeAir electronic and HEPA air cleaners are effective in removing these particles.
  • The average person breathes in about 16,000 quarts of air per day. Each quart contains some 70,000 visible and invisible particles. That's over a billion particles per day that our lungs have to filter out!
  • The average home collects about 2 pounds of dust per week!
  • A 9' x 12' carpet or rug will collect an average of about 10 pounds of dust per year!

Air Filtration is an effective means to clean air through the removal of particulate, gases and odors.

Depending upon your requirements, a combination of different air filters inside a single air purifier may determine the type and brand of air cleaner or air purifier that you will need. If you have any questions about the air filtration process and what level of protection you need, please do not hesitate to contact us.

Pre-Filter
Prefilters are usually made of media to capture large dust particles and extend the life of the Hepa filter. They are easily replaced at minimal cost and some can be vacuumed for a period of time.

HEPA Air Filter
A standard HEPA air filter traps 99.97% of all particles down to 0.3 microns, including harmful fibers, dust, mold spores, dust mites and some tobacco smoke. Hyper-Hepa air filters can trap even smaller particles including bacteria and viruses. HEPA air filters were first designed by the Atomic Energy Commission to remove radioactive dust from plant exhaust. They are now part of the primary filtration systems for home air purifiers, electronic clean room assembly, isolation wards, surgical theaters, bioengineering, pharmaceutical processing, and other applications where the maximum reduction or removal of sub-micron particulate is required. A human hair is about 300 times too large to penetrate a HEPA air filter.

Carbon Filter
Carbon filters provide protection against gases and odors. Activated Carbon filters provide greater adsorption. Enhanced Activated Carbon filters provide additional protection where even greater adsorption is required for gases such as formaldehyde, ethylene, heavy metals from cigarette smoke, lower weight hydrocarbons, ammonia and volatile organic compounds.


Home Air Filtration - cleaning the air with home air filters provides comfort and the protection of your health.


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