1:5:10:365 EcoTip Blog

September 9, 2008

:253 Dust Controlling Power Tools

Welcome to today’s 1:5:10:365 Tip for becoming a better steward for our home and planet environment.

1:5:10:253 EcoTip:  A variety of power tools are available with a dust collection bag. This bag is ineffective for controlling small particles of dust, but can frequently be removed and adapted so that a HEPA vacuum cleaner can be attached to the power tool so that small particle dust control results.

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 Additional Information:

Suggested Review: :016, :247

When purchasing power tools look for a vacuum cleaner attachment such as shown on the saw above. Dust bags such as are present on the sanders shown above – can frequently be removed and a vacuum cleaner nozzle attached. Many manufacturers are now supplying the adapters or building them into the tool for easy attachment.

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June 30, 2008

:182 Filtration Height

Welcome to today’s 1:5:10:365 Tip for becoming a better steward for our home and planet environment.

1:5:10:182 EcoTip: The placement height of portable air filters is important. Try to set portable air filtration units so the filtered air is released at a height well above the floor. Breathing zone height is a good choice. Air that is released near the floor will disturb the dust particles that have settled causing the airborne particle concentration to rise.

It is much more effective to collect settled dust from the floor with a HEPA vacuum cleaner than to blow it up into the air in hopes of the filter collecting it.

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 Additional Information:

Suggested Review: :016

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June 28, 2008

:180 Portable Air Filtration

Welcome to today’s 1:5:10:365 Tip for becoming a better steward for our home and planet environment.

1:5:10:180 EcoTip: Portable HEPA Filtration can help reduce airborne particulates. If your home is a “Well Tuned Home” as I discussed in yesterdays post, additional spot filtration can improve indoor air quality even more.

Over the next several days I will provide tips for choosing a portable purifier.

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 Additional Information:

Suggested Review: :110, :179

Yesterday I brought a portable particle counter home from work to check the airborne particle levels. This is a device that can be set to measure the quantity of different sized particles. The smoke from the California Wildfires that are burning wasn’t quite as bad as the night before, but the outdoor smoke odor was still quite pronounced. Here’s what I found when I averaged the 1 micron sized particle counts in several places:

Outdoor air – 2500 particles/cubic liter

Indoor air (most rooms) – 250 particles/cubic liter

Indoor air (supply registers) – 100 particles/cubic liter

Filtered Air (at the machine) – 1 particles/cubic liter

Indoor air (room with portable HEPA air filter) – 50 particles/cubic liter

In addition to the things I mentioned in yesterdays EcoTip (:179), we also have a 1 inch pleated MERVE 11 filter in our air conditioner (EcoTip :110). By having our home Well-Tuned and the upgraded furnace filter, the particle level inside was ten times lower than outside.

The HEPA filtration in the portable unit was filtering out almost all the particles I was measuring at the machine – which means it was working the way it is supposed to and was reducing the indoor particle level even further.

I’m unwilling to test this while the outdoor air quality is so bad, but its my guess that the most important factor in excluding the smoke has been having our home “Well Tuned”. The pleated furnace filter and the portable filter reduced it further. If the home weren’t well tuned the filtration wouldn’t be able to keep up.

Over the next several days I will be talking about other factors to consider when choosing and setting up a portable filter or purifier unit.

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