Clean Air Filters and Indoor Purifiers
We discuss the Clean Air Delivery Rate (CADR)
The advent of clean air filters: While society has broadly embraced advances in building technology; it’s impossible to ignore the fact that there’s been an environmental penalty to pay. City centers are disappearing in a haze of smog while freeways are painted grey with exhaust fumes.
However, what’s most surprising is that scientific studies have shown that it’s significantly worse indoors than outdoors. Today’s buildings are so tightly sealed that air quickly turns stale and unwelcome particles soon build up. One solution is to install a clean air filter.
Clean Air Filters control dust mites
While dust may look fairly innocuous to the naked eye; as soon as it’s placed under the electron microscope the real picture emerges. Common constituents of dust include: skin and hair cells, mildew, pollen and smoke. However, it’s the dust mites that cause most of the problems.
These microscopic bugs feed on dust and can cause serious irritation and allergic reactions. In fact, dust mites have been implicated in approximately 70 % of asthma plus countless other respiratory complaints. The most efficient way to control dust mites is to control dust (their favorite food) by filtering the air inside your home.
The good news is that air filter manufacturers have responded to this increased demand and today’s consumers are spoiled for choice. Options cover the spectrum form affordable filters designed to remove only the biggest particles to state of the art HEPA air filters (ideal for asthmatics or anyone suffering form an allergy, such as hay fever).
The efficiency of air filters is measured in terms of the Clean Air Delivery Rate (CADR), which is calculated by multiplying the airflow by the quantity of particles removed. It may sound complicated, but it’s simply a case of remembering that; the higher the CADR the better the filter. It’s also worth remembering that prices vary enormously form supplier to suppler, so it pays to shop around.