Products
Air Cleaners
A wide variety of air cleansers are on the market. Some generate
negative ions and ozone to cleanse the air without the use of any type
of fan or motor. It is certainly an advantage if you want a quiet unit
that uses little electricity. Other units use a fan to move air through
a hepa or other filter to remove particulates and a charcoal or other
filter to remove toxic gases and odors. Some of these do have fairly
quiet fans, although, all are noisy compared to the first type with no
fan.
Full Spectrum Lights
Most fluorecent and incandecent lights emit wavelengths that are very
different than natural sunshine. Although leaving out the dangerous UV
light that causes sunburn may be a good thing changingthe light in the
visible spectrum may not be healthy for us. Full spectrum lights attempt
to match the visible part of sunlight so colors appear more natural and
our eyes receive more the kind of light that is healthy for us. There
are also very bright lights available to treat SAD (seasonal affective
(disorder). People with SAD feel depressed, tired and develop
carbohydrate
cravings during the winter when there is limited sunlight.
Water Purifiers
There are many types of water purifiers. Some use a carbon block to
remove toxic chemicals and particulates. The pores in the carbon block
are so small that even bacteria can't get through. There are also
granular carbon filters. These are not as good and allow
bacteria to pass through. Sometimes the carbon is treated with silver to
kill the bacteria. Another type of purifier is reverse osmosis. The big
disadvantage is that most of the water that goes into the unit goes
down the drain and only a small part comes out of the unit as purified.
So these are not very good for conservation. Water distillation produces
very pure water if combined with carbon filtration to remove chemicals
that distillation does not. The downside is they are noisy, use a lot of
electricity and require a lot of trouble and maintenance. |
