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All air conditioners have a filter that removes dust, pollen and large particles from the intake air. How much of the air-borne irritants it removes depends on the type of filter.
There are two keys to green living - good habits and good technology. For example, a water-saving showerhead is a good technology, while having shorter showers is a good habit. Both benefit the environment.
What's with all the acronyms and jargon? What on earth are LEDs, CFLs, IRCs, low-voltage and low-energy downlights?
Paper is one material with a tendency towards 'downcycling' - the recycling of a material into another of lesser quality.
Are they the reason for the building of new power stations?
The size of your pet's greenhouse impact will depend on the type and size of animal, what you feed it, trips to the vet or obedience school, the products you buy for it and many other factors.
Halogen downlight bulbs can be replaced by a range of simple, plug 'n' play alternatives.
Today paper manufacturers and their customers are considering a broad range of issues from fibre sources to chemical use.
It's a great idea to capture the free heat from the Sun, and double-glazed windows can help trap the warmth in cooler months. But can they impede other forms of passive heating?