 |
|
 |
| CAP
600:Frequently Asked Questions |
Q: Are the benefits of HEPA
filtration recognized by the scientific and healthcare communities?
A: Numerous CAP units have been purchased as a direct result
of physician recommendations. According to the 1997 ALA publication,
"Blueprint for Health," 'Because of its high efficiency at filtering
out tiny particulates, HEPA filtration is highly recommended for those
individuals who suffer from allergies, asthma, or other respriratory
problems.'
Q: I've heard advertisements on the radio for allergy filters
for under $100. Why would I buy a CAP HEPA system?
A: You get "what you pay for." These ads are generally for 1"
thick "passive" filters with an electrostatic charged media, When clean,
this type of filter typically catches less than 20% of 0.3-micron
particles. When dirty, almost all particles can pass right through.
HEPA filters start at 99.97% and actually get more efficient as filters
get dirty.
Q: Why do the CAP600 and CAP1200 units have blowers?
A: The more efficient a filter is, the higher its resistance
to airflow and the greater the loss of HVAC efficiency and performance.
The powerful blower ensures that peak HVAC system performance is
maintained.
Q: Are "HEPA type" filters the same as true HEPA filters?
A: No. By definition, "true HEPA" filters can allow no more than 3 out
of 10,000 0.3-micron particles to pass through. "HEPA type" filters may
allow leakage of as many as 4,500 of 10,000 0.3-micron particles.
Q: Won't portable HEPA units provide the same air cleaning
benifits?
A: No. Studies have shown that air cleaners attached to the
main ventilation system are generally much more effective than
free-standing air cleaners. Portable units can also be noisy and take
up space, and purchasing units for every room would be costly.
Q: How do I know when I need to change CAP filters and lamps?
A: To keep the system running at peak efficiency, the furnace
blower and the CAP unit must be run in the continuous mode. Prefilters
should be changed when the amber "change filters" lamp illuminates; UV
and UV plus lamps should be changed yearly; HEPA filters about every two
to three years. |
|
|
